Abstract: A control system for a mobile device comprises an audio input that generates an audio input signal. An audio amplifier amplifies the audio input signal using a gain. An adaptive gain control (AGC) module receives the audio input signal and adjusts the gain of the audio input signal. A comparing module generates a first signal when the gain is less than a threshold. A timing module determines a duration of the first signal. A selecting module communicates with the timing module and selects one of an active mode and an inactive mode of the mobile device when the duration is greater than a first period.

Abstract: An efficiency controlling module of a power amplifier for wireless communication device includes an attenuator, a filter, and a DC/DC convertor electronically connected in series. The attenuator obtains and attenuates efficiency controlling signals. The filter reduces noise in the efficiency controlling signals. The DC/DC convertor dynamically adjusts an output voltage according to the efficiency controlling signals.

Abstract: Methods and apparatuses are provided for use in devices that are enabled to receive control channel information over a link having a plurality of interlaced slots. The methods and apparatuses may be implemented to selectively disable/enable one or more circuits within a receiver path at selected times.

Abstract: A method and apparatus for controlling power in a decode-and-forward (DF) relay system is provided. The method of controlling power in a DF relay system includes: acquiring first channel information of a first link between a source node and a destination node, second channel information of a second link between the source node and a relay node, and third channel information of a third link between the relay node and the destination node, by using a pilot signal; determining a power level of the source node from the acquired first through third channel information; and feeding back the determined power level to the source node and the relay node.

Abstract: A mobile device having a wireless local area network interface and one or more other wireless interfaces identifies a location of the mobile device via one or more of the other wireless interfaces, estimates a likelihood of finding a wireless local area network at the location, and scans for wireless local area networks while at the location during scan sessions that are separated by intervals, where the intervals are determined by the estimated likelihood.

Abstract: A mobile station includes an intermittent communication managing unit that manages a communication period for communicating with a first base station and a non-communication period for not communicating with the first base station, and a scan period setting unit that shifts and sets a scan period to reduce an overlap period with the communication period. The scan period, during which a scanning process for obtaining a condition of radio waves from a second base station can be executed, overlaps a plurality of the communication periods. Moreover, the mobile station includes a scan processor that executes the scanning process during the scan period.

Abstract: The subject matter disclosed herein relates to changing at least one power state of a mobile station at least in part in response to information indicating a change in altitude from one or more sensors.

Abstract: Disclosed are circuits, techniques and methods for implementing an attenuator in a signal transmission path. In one particular implementation, an attenuation may be adjusted based, at least in part, on a control signal. In another implementation, such an attenuation may be adjusted in coarse increments by varying one or more gate voltages applied one or more transistors. In yet another implementation, adjusting said attenuation in fine increments by varying a bias voltage applied to at least one level shifter.

Abstract: A power reduction proposal for a receiver circuit that adheres to a plurality of defined states and masking logic to mask the output of the squelch receiver. Furthermore, the proposal utilizes and counters to count the various timeout conditions. Consequently, the squelch receiver consumes less power and can be either powered down or periodically enabled to allow for polling.

Abstract: Device, system, and method of power saving in wireless network. For example, a method includes: receiving from a wireless access point a wireless communication signal indicting wireless network load information represented as a value of a parameter in a Basic Service Set load information element, wherein the parameter comprises a parameter selected from a group consisting of: a station count parameter, a channel utilization ratio parameter, an available admission control parameter, a network congestion parameter, a transmission power suggestion parameter, a reception power suggestion parameter, and a late adaptation suggestion parameter; and modifying a power consumption mode of a communication unit of a wireless communication device based on said parameter.

Abstract: A wireless communication apparatus includes: a wireless communication unit which performs wireless communication; a converter which converts an input voltage into an output voltage in a switched-mode to supply the output voltage to the wireless communication unit; and a frequency adjusting unit which adjusts a frequency of a high frequency noise caused by a parasitic component of the converter, if the converter is switched, to prevent the frequency of the high frequency noise from interfering with a frequency of the wireless communication performed by the wireless communication unit.

Abstract: The disclosure provides a system and method for detecting activation of a communication device via passive means. For the system and method, the device comprises a casing for housing a display and a keyboard; a microprocessor controlling aspects of the keyboard and display; a passive usage sensor; and a power application operating on the microprocessor. The power application monitors the usage sensor for a signal indicating movement of the device from a resting location when the device is in a low power mode and upon detection of the signal for provides power to at least one additional element in the device.

Abstract: The present invention relates to an energy efficient mechanism for establishing and maintaining a communication between nodes (A . . . F) in a wireless communication system. In particular, it relates to a distributed low power medium access control (MAC) mechanism for sharing the communication means in a wireless communication system. According to the present invention a destination node (A) listens to a communication channel periodically. For requesting services from the destination node (A), a wake-up signal (WU) is transmitted from a source node (B) to the destination node (A) via the communication channel, wherein the wake-up signal (WU) is formed by a preamble (WP) and an information for controlling the communication between nodes (A . . . F). The WU signal duration and content is adapted depending on the system operation context to reduce either idle times, power consumption, latency or network blocking (collision avoidance).

Abstract: In a method and apparatus for controlling operation of a wireless device, a host assembly of the wireless device enters into a handshaking procedure with firmware of the wireless device to initiate entry into or exit from a host sleep mode. Before such entry or exit, the handshaking procedure may require the host assembly to send an initiation handshake signal to the firmware, and require the firmware to send a confirmation handshake signal back to the host assembly. Entry or exit may be delayed until after the confirmation signal is received. The confirmation signal may vary depending on the handshaking configuration and activation data, and the confirmation signal may vary depending on whether the wireless device is in a power save mode or not.

Abstract: In one embodiment, the present invention includes an apparatus having at least two gain stages to receive incoming signals and to output amplified signals, along with multiple regulators. More specifically, a linear regulator can be coupled to the first gain stage to provide a first regulated voltage to the first gain stage, and a switching regulator coupled to the second gain stage to provide a second regulated voltage to the second gain stage.

Abstract: Various embodiments described herein relate to a power management block and an amplification block used in the transmitter of a communication subsystem. The power management block provides improved control for the gain control signal provided to a pre-amplifier and the supply voltage provided to a power amplifier which are both in the amplification block. The power expended by the power amplifier is optimized by employing a continuous control method in which one or more feedback loops are employed to take into account various characteristics of the transmitter components and control values.

Abstract: Apparatus, and an associated method, for paging an access terminal in a radio communication system. Dynamic configuration and reconfiguration of a quick page message is provided. Its configuration is dependent upon paging load in the system. Hash values are selected and used pursuant to the configuration, and use, of the message. A first hash value is selected within a first range. And, a second hash value is selected within a second range. The second range from which the second hash value is selected does not include the first hash value.

Abstract: A radio frequency (RF) transmitter has a plurality of digitally controlled phased array antennas coupled to and controlled by the processor to transmit data. The processor is to enable one or more antennas to be turned off during a use of the apparatus to reduce a power consumption of the apparatus.

Abstract: The present disclosure describes a method and apparatus for transmit power calibration in a frequency division multiplexed wireless system (100). The method may include receiving (315) an uplink scheduling grant at a user equipment (120), establishing (320) a desired power level based on at least the uplink scheduling grant, and setting (325) hardware power settings based on the desired power level. The method may also include transmitting (330) data in a first subframe at a first power level based on the hardware power settings, measuring (335) the first power level in the first subframe, and determining (340) a difference between the desired power level and the measured first power level. The method may additionally include modifying (345) the hardware power settings based on the difference and transmitting (350) at a second power level based on the modified hardware power settings in a next transmission corresponding to the transmission in the first subframe.

Abstract: A system and a method thereof for dynamically adjusting sleep/awake intervals of a wireless network device are provided. The system has at least one base station (BS) and at least one wireless network device. The system performs the method to dynamically adjust the sleep/awake intervals by properly delaying and combining delivery of data such that the wireless network device is turned into a sleep mode after finishing data delivery within an adjusted period. Thereby, the number of awake frames of a mobile subscriber station (MSS) can be reduced without sacrificing the quality of service (QoS).

Abstract: A wireless communication entity schedulable in a wireless communication network, including a controller (603) communicably coupled to a power amplifier (608), wherein the controller varies a maximum transmit power of the wireless communication entity based on the radio resource assignment information receiver by the radio receiver.

Abstract: One embodiment of the present invention relates to a transmission circuit configured to dynamically adjust a number of active transistor cells within a power amplifier based upon a signal quality measurement determined from a feedback. The transmission circuit comprises a transmission chain having a power amplifier configured to provide an output signal. A feedback loop extends from the output of the power, amplifier to a control circuit and is configured to provide measured information about output signal (e.g., phase, amplitude, etc.) to the control circuit. The control circuit utilizes the measured signal information to evaluate a measured signal quality of the output signal. The control circuit dynamically adjusts a number of active transistor cells within a power amplifier based upon a signal quality measurement until the power amplifier is optimized to operate at an operating point for low current and good transmission quality.

Abstract: A method, amplifier and system are provided for enabling power recovery from a narrow-band antenna when a signal having bandwidth exceeding that of the antenna is utilized. The amplifier provides amplification of a source signal to the antenna and recovery of power stored in the antenna during periods when the impedance of the antenna is negative to enable reverse current through the amplifier to a direct current (DC) power source.

Abstract: A Bluetooth host in a normal mode is enabled to monitor activities at USB endpoints. A Bluetooth USB radio has one or more active Bluetooth connections with peer Bluetooth radios. When each of the Bluetooth connections is in sniff mode, the Bluetooth host enables cancellation of normal USB activities at USB endpoints to enter a low power mode. The Bluetooth connections are still alive while the Bluetooth host is in the low power mode. In the low power mode, the Bluetooth host is enabled not to poll the bulk endpoint and to poll a USB interrupt endpoint in extended intervals for Bluetooth data received from the Bluetooth USB radio. The Bluetooth host is enabled to switch from the low power mode to the normal mode to process the received Bluetooth data over the bulk endpoint when a specific HCI event is received over the interrupt endpoint.

Abstract: A communication device including a memory configured to store a plurality of device resource profiles, wherein each device resource profile specifies device resources of the communication device and is associated with a respective communication connection state of a plurality of communication connection states; a determining circuit configured to determine a communication connection state of a communication connection of the communication device; and a control circuit configured to set device resources of the communication device in accordance with the device resource profile associated with the communication connection state of the communication connection.

Abstract: Described are integrated active tags in a mobile device. The mobile device may include (a) a transceiver broadcasting a first location beacon when a capacity of a battery of the mobile device is above a predetermined threshold; and (b) a tag broadcasting a second location beacon when the capacity of the battery of the mobile device is below the predetermined threshold.

Abstract: Communication equipment includes a circuit generating an RF input signal; a PA receiving a supply voltage, receiving the RF input signal, and providing an amplified version of the RF input signal as an output signal that is associated with an output power of the communication equipment; and an output circuit that includes an antenna for transmitting the output signal. The communication equipment also includes: a voltage detector circuit including sensing circuitry for sensing the supply voltage and a comparator for comparing the supply voltage to a first voltage threshold and generating a control signal when the supply voltage exceeds the first voltage threshold; and a disabling circuit coupled to the voltage detection circuit for disabling a portion of the communication equipment in response to the control signal to maintain output power of the communication equipment below a maximum output power level.

Abstract: A polar modulation transmitter includes an amplitude modulation (AM) path with an amplitude modulation to amplitude modulation (AM/AM?) correction circuit and a phase modulation (PM) path with a delay element and an amplitude modulation to phase modulation (AM?/PM) correction circuit. The AM/AM? correction circuit receives and predistorts a digital amplitude component signal depending on amplitudes of samples in the digital amplitude component signal, thereby generating a predistorted digital amplitude component signal. The delay element receives and delays a digital phase component signal, to generate a delayed digital phase component signal having a delay corresponding to the latency introduced by the AM/AM? correction circuit. The AM?/PM correction circuit predistorts the delayed digital phase component signal depending on amplitudes of samples in the predistorted amplitude component signal, thereby generating a predistorted digital phase component signal.

Abstract: A broad power band transmitter utilizing a duty cycle modulator achieves 80dB of power range for 3G signals. The present invention greatly improves the efficiency of transmitters used in mobile phones, for example, by using the duty cycle modulator during medium and low power levels of the transmitting power amplifier. The power amplifier operates in three different modes based upon the amplifier power level selected. The power amplifier operates in an EER mode during high power levels, in a DCM ERR mode during medium power levels, and in a DCM mode during low power levels.

Abstract: An apparatus and method for tracking a target wherein a new position fix is taken when the measured movement of the target is more than a predetermined threshold amount or when the position fix has not been updated in a predetermined interval. The apparatus and method manage energy use and network resources when performing position determination fixes.

Abstract: Whether to process a control channel corresponding to a data channel carrying transmitted data based on a re-transmission indicator and a threshold value is determined at the receiver. The re-transmission indicator indicates a number of times the transmitted data has been transmitted. Control information received on the control channel is then selectively processed based on the determining step.

Abstract: Embodiments of a system and method for communicating over a fading channel are generally described herein. A transmitter uses a water-filling technique at lower power levels when the channel is not experiencing fading and uses channel-inversion technique at higher power levels when the channel is experiencing some fading. The transmitter refrains from communicating when the channel is experiencing deep fading. An average transmit power specification is maintained over a predetermined period of time even though transmissions using the channel-inversion technique may significantly exceed the average transmit power specification.

Abstract: A method (150) and device (200) for conserving energy in a power storage device of a mobile station (102, 110), including: selecting (155) an alert mode associated with a mobile station, the alert mode including at least one of: silent alert, vibrate and manual answer; detecting (160) the alert mode of the mobile station; and increasing (165) a length of a paging cycle in order to conserve power of an energy storage device associated with the mobile station (102, 110), in response to the detected alert mode. The method provides a useful compromise for energy conservation of a power storage device on one hand, while also accommodating a user's demand for a short paging interval when desired, on the other.

Abstract: A digital broadcast receiving system and a method for controlling the same are disclosed. The method a method for controlling a digital broadcast receiving system includes the steps of receiving a broadcast signal having mobile service data and main service data multiplexed therein, extracting transmission parameter channel (TPC) signaling information and fast information channel (FIC) signaling information from a data group within the received mobile service data, acquiring a program table, by using the IP signaling channel within an ensemble included in the received broadcast signal, and controlling the system to create a list of channels mapped with all ensembles transmitted through at least one physical frequency, by using the acquired program table.

Abstract: A Global Positioning System (GPS)-enabled mobile terminal and current position location method thereof acquires current position information of the mobile terminal while reducing power consumption of conventional mobile terminals with GPS capability. A method for locating position of a mobile terminal having a GPS reception unit includes storing a current position information of the mobile terminal which is acquired from GPS data received by the GPS reception unit; switching off the GPS reception unit after acquiring the GPS data; storing a base station information received from a first base station to which the mobile terminal is connected with starting a first timer. In the case where handover to a second base station is detected, a second timer is started. In the case where an expiration of the second timer is detected, switching on/activating the GPS reception unit to update the current position information; and initializing the first timer simultaneously with the expiration of the second timer.

Abstract: A power managing method applied to a wireless network apparatus includes the steps of periodically detecting whether the wireless network apparatus is operated in a non-link status to determine whether to enter a first power-saving mode when the wireless network apparatus powered on; and determining the wireless network apparatus whether to enter a second power-saving mode according to an information of a beacon received by the wireless network apparatus when the wireless network apparatus is operated in a link status. When the wireless network apparatus is detected to be operated in the non-link status, control the wireless network apparatus to enter the first power-saving mode by a power mode controlling circuit. The first power-saving mode is an inactive power-saving mode, and the second power-saving mode is a linked power-saving mode.

Abstract: A system and method for managing battery slump in a battery-powered communications device including: an input configured for receiving battery voltage level information; an output configured for sending a signal for terminating a transmission; and a controller connected to the input and the output and configured to receive the battery voltage level information from the input; monitor the battery voltage level information; and send a signal via the output to terminate a transmission if the battery voltage level information crosses a predetermined threshold during the transmission. In particular, the system and method may further include an input connected to the controller and configured for receiving a signal indicating when a transmission is beginning or occurring and the controller is further configured to receive and monitor the battery voltage level information only when the transmission is occurring.

Abstract: A broadcast receiving system capable of receiving mobile broadcast data and a method for processing broadcast signals are disclosed. The broadcast receiving system includes a first receiving unit, a second receiving unit, a known sequence detector, a equalizer, and a display unit. The first receiving unit receives a first broadcast signal including first mobile broadcast service data and first main broadcast service data. The second receiving unit receives a second broadcast signal including second mobile broadcast service data and second main broadcast service data. The known sequence detector detects at least one of known data included in the received first broadcast signal and known data included in the received second broadcast signal. The channel equalizer uses the detected known data, thereby channel-equalizing the received first and second mobile broadcast service data corresponding to the detected known data.

Abstract: A method for wireless communication between a base station and a number of devices is provided, with the devices in each case having a limited energy supply. To establish a connection, the base station sends a sequence of synchronization signals on at least one of its communication channels. The devices in each case listen on their parameterized or unparameterized communication channel within a listening period, which is repeated with a repetition frequency that can be set. Outside the listening period, the device in question is set to an energy-saving mode. The length of the listening period, the repetition frequency and the energy consumption in the energy saving mode are synchronized with each other in such a way that the energy consumption up to the connection setup averaged over time does not exceed the energy consumption during normal operation of the device.

Abstract: The present invention relates to a method for conserving battery power during shipping for an impact activated device for transmitting a radiofrequency signal. The method comprises forming an impact activated device for transmitting a radiofrequency signal. The shot tracking device is shipped in commerce and received at a retailer. The shot tracking device is stored at the retailer, wherein the battery has at least 90% of its capacity until paired with a receiver.

Abstract: Communication with less noise is to be performed. A voltage value control signal functioning as an instruction to change the voltage value supplied from a voltage converting section to an LFI is output from a CPU. A driving section for the LFI outputs the control signal at 125 kHz that drives an FET circuit section according to the voltage value supplied from an ECU. The FET circuit section outputs the driving current for an antenna under the control of the driving section. A connecter terminal that connects to a harness is connected to a connecter terminal for GND connection along with the GND terminal of the voltage converting section. A connecter terminal that connects to a harness is connected to a connecter terminal for GND connection along with the GND terminal of the FET circuit section.

Abstract: The present invention provides a method for managing transmissions in a wireless communication network (100). The method at a first node (102) of a plurality of nodes of the wireless communication network includes transmitting (304) a data frame to a second node (104) using a first transmit power level. The method further includes determining (306) whether an acknowledgement for the transmitted data frame is received from the second node. Further, the method includes determining (308) a cause of unsuccessful transmission when the acknowledgement is not received from the second node. Moreover, the method includes re-transmitting (310) the data frame to the second node using a second transmit power level when the cause of unsuccessful transmission is determined as a collision. Furthermore, the method includes setting (312) a transmit power level of the first node to a third transmit power level.

Abstract: A system and method are disclosed for controlling transmit power amplification in a wireless transmitting device. A processor receives data to determine whether a communication channel from a transmitting device to a receiving device is strong enough to support a target data transmit rate of the devices with a power amplifier either on or off. The processor controls a switching device between a data transmitter circuit and the transmitter's antenna based on the quality of the communication channel. In a first state, the switching device connects the data transmitter circuit to the power amplifier to increase the strength of the signal communicated to the antenna. In a second state, the switching device bypasses the power amplifier. The power amplifier is turned off when the switch is in the second state, thereby decreasing the power consumed by the transmitting device as it transmits data at the target data transmit rate.

Abstract: The present invention relates to an apparatus (100), a base station (500) and a method for reducing peak power of an input signal (1) using successive processing stages (10). Each stage (10) comprises a peak finder (11) arranged to find at least one peak of the input signal (1) exceeding a threshold level, and to make a list (LO) comprising information on a number of the highest peaks or information on each peak; a peak selector (12) adapted to receive the list (LO) and to receive, from each preceding stage (10), a list (Li) with information on unreduced peaks and the stage number. The peak selector (12) further selects from all lists a peak (P) to be reduced and determines a fractional sample shift value (FSi) of the stage in which the selected peak was found. Each stage (10) further comprises a kernel selector that selects a kernel signal (Ki) that is fractionally sample shifted with the sum of all fractional shift values, starting from the shift value (FSi) up to the present stage.

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 for controlling power in a wireless telephone set. The method includes the steps of detecting whether or not any interrupting signals have been generated and performing a user mode for supplying power only to sections necessary for operations according to an origin of the interrupting signals, when said interrupting signals are generated.

Abstract: A mobile communication terminal and method of controlling a broadcast program are disclosed, by which the inability to view or record a reserved broadcast program is prevented and by which information related to the availability of a reserved broadcast program for viewing or recording with reference to a battery capacity can be provided to a user in real time.

Abstract: According to one embodiment of the present invention, it is possible to realize a signal transmitter which is capable of reducing power consumption and which can be easily designed. A differential transmitter block outputs differential output signals fixed to a predetermined logic signal to a differential receiver block and disconnects terminating resistors from a signal transmission path in an idle state. In the differential receiver block, a differential comparator outputs a logic determined by symbols of the differential output signal from the differential transmitter block, and an operating state detector detects the idle state upon detection that time successively outputting a predetermined logic by the differential comparator reaches a predetermined time, and controls switches so as to disconnect the terminating resistors from the signal transmitter in the receiving side upon detection of the idle state.

Abstract: A method for supporting a Peer-to-Peer (P2P) communication in a wireless communication system is provided. The method includes identifying whether a Mobile Station (MS) is in a wireless communication active state, a P2P active state, or a P2P previous active state, and transiting to the P2P active state if a P2P connection request occurs in the P2P previous active state and transiting to the P2P previous active state if a P2P communication termination occurs in the P2P active state.

Abstract: A power amplifier controller circuit controls a power amplifier based upon an amplitude correction signal indicating the amplitude difference between the amplitude of the input signal and an attenuated amplitude of the output signal. The power amplifier controller circuit comprises an amplitude control loop and a phase control loop. The amplitude control loop adjusts the supply voltage to the power amplifier based upon the amplitude correction signal. The RF power amplifier system may reduce the corrective action of the amplitude loop during periods of relatively rapid changes in amplitude, and thus distortion can be further reduced.