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.

Abstract: A method for paging an idle MS includes: a PC sends a Paging Announce message to the BS, starts a timer and sets a paging count threshold; the BS pages the MS; if no paging response is received from the MS before expiry of the timer, the PC compares the number of times of paging with the set paging count threshold, and re-sends the Paging Announce message or cancels the paging operation, according to the comparison result. A method for stopping paging to an idle MS includes: a BS in a PG pages an MS, and a network side sends a paging stop message to at least one other BS; and at least one other BS stops the paging process. A paging includes a central processing unit for setting a paging count threshold and judging whether a paging response is received.

Abstract: Disclosed is a method and apparatus for increasing the waiting time of a User Equipment (UE) through an efficient processing of assigned slots. The method includes processing a first 10 ms half frame of the assigned slot initially when the assigned slot is processed, identifying a general page message located in the first half frame, and performing a transition operation into a sleep state, when the general page message corresponds to a null general page message having no paging information and no control information to be updated.

Abstract: A method, apparatus, and system for tracking and locating Bluetooth enabled devices is described. A network of Bluetooth sniffers can be used to rapidly locate lost devices and their owners. Wearable child devices maintain low power contact with parent devices until such time as a signal limit is reached, at which point the parent devices alarm. An optional network of fixed sniffing devices can be used to coordinate a search for lost child devices once an alert is issued to the system.

Abstract: A method for modulating the impedance of an antenna circuit supplying pump signals to a charge pump comprising at least one first pump stage and one last pump stage, the last pump stage supplying a continuous voltage. The output of the first pump stage is short-circuited by means of a switch and the last pump stage goes on pumping electric charges and supplying the continuous voltage. Application in particular to RFID passive transponders.

Abstract: Various methods and associated wireless communication mobile terminals are provided that repetitively switch power on and off to a RF transmitter and/or to a RF transceiver, and that regulate the power duty cycle in response to movement of the associated communication terminal. Movement of the communication terminal may be sensed in response to an acceleration signal from an accelerometer, a position signal from a GPS receiver, a light level signal from an ambient light sensor, and/or a pressure level signal from a pressure sensor.

Abstract: Provided is a communication technology of an access point and a terminal that may decrease power consumption by changing an operation state of the terminal from an awake state to a sleep state when a data stream to be transmitted to the terminal is absent or has completed in a transmission opportunity (TXOP) duration.

Abstract: A transmission power control apparatus capable of reducing unnecessary transmission power that is consumed in transmission of pilot symbols. In the apparatus, a power control part establishes, based on a repetition number of a data signal, a transmission power value of a pilot signal. For example, the power control part establishes, based on an improved reception quality when data signals as replicated in accordance with the repetition number of a data signal are combined, a transmission power value of a pilot signal at a level required and sufficient for meeting a target value of the reception quality of the other end of communication. A power amplifying part amplifies the pilot signal in accordance with the established transmission power value.

Abstract: A communication system is enclosed. In one embodiment, the communication system includes a communication device configured to puts itself into an activated state or into a deactivated state at alternate times. The communication device receives time information in a first operating state of the activated state, takes the received time information as a basis for ascertaining the later time at which useful information is transmitted to the communication device, receives the useful information at the later time in a second operating state of the activated state, and with individual components of the communication device being able to be put into an activated state or into a deactivated state independently of one another.

Abstract: A mobile terminal detecting an instantaneous deterioration in BLER and quickly converging an SIR into an appropriate target SIR, thereby preventing requesting an excessive transmission power from a base station and a method of controlling the mobile terminal are provided.

Abstract: A digital transmission circuit and interface provide selectable power consumption via multiple weighted driver slices, improving the flexibility of an interface while reducing transmitter power consumption, area and complexity when possible. A cascaded series of driver stages is provided by a set of parallel slices and a control logic that activates one or more of the slices, which combine to produce a cascaded active driver circuit. The power consumption/drive level selectability of the slice combination provides a driver that can be fine-tuned to particular applications to provide the required performance at a minimum power consumption level.

Abstract: A method of providing power management in a Wireless Local Area Network (WLAN) is presented. The method includes receiving a Traffic Indication Map (TIM) at a station, indicating the presence of buffered frames, associated with any AC, for the station at an Access Point (AP). The method further includes sending, by the station, one of an uplink data frame if one is buffered, and a null frame to retrieve the buffered frames from said AP. The station remains awake to receive frames from the AP until a downlink frame is received containing an indication that it is the last frame to be transmitted in the service period. The method may further include determining at the end of service period whether there are more frames remaining buffered for the station at the AP.

Abstract: A wireless network device includes a transceiver module, a beacon miss module, and a control module. The transceiver module is configured to transition the wireless network device from an inactive mode to an active mode at a wakeup time. The wakeup time is a predetermined time period before a time at which a delivery traffic indication message (DTIM) beacon is expected by the wireless network device. The beacon miss module is configured to count a number of DTIM beacons missed by the transceiver module during each of a first predetermined period and a second predetermined period. The first predetermined period is shorter than the second predetermined period. The control module is configured to selectively adjust the wakeup time during operation of the wireless network device based on the number of the DTIM beacons missed by the transceiver module during each of the first predetermined period and the second predetermined period.

Abstract: A wireless human interface device configured to establish a link with a host, wherein the device includes a transceiver for transmitting data to and receiving data from a host transceiver unit, wherein the host transceiver unit is connected with the host; a processor connected with the transceiver and configured to process data from the host and the human interface device, and a power circuit connected with the processor and configured to regulate the power usage of the human interface device, wherein the power circuit includes a battery, a computer readable media having instructions thereon, wherein the instructions include routines for monitoring the operational state of the human interface device, and routines for controlling the operation of the human interface device using the operational state of the human interface device to maximize the useful life of the batteries.

Abstract: A method, system and computer program product for notifying a user of recently received information while away from the display connected to the computer. Using a non-commercial, private network, the information is forwarded from a computer through a transmitter to a portable receiver with an integrated display. Such information may be in the form of e-mails, stock quotes, and calendar alarms.

Abstract: Systems and methods are provided for controlling headroom of an amplifier (e.g., in a transmitter). A method comprises obtaining a target output power for a current interval and obtaining a target headroom for a subsequent interval. The method continues by adjusting, during the current interval, the power output capability of the amplifier based on the target headroom and adjusting the input power of an input signal based on the target output power, such that the output power of the amplifier is substantially constant during the current interval as the power output capability of the amplifier is adjusted.

Abstract: Some embodiments discussed relate to a method and apparatus, comprising a power amplifier module, a transceiver module coupled to provide a signal to an input of the power amplifier module. The transceiver module comprising an integrated temperature sensor to sense an instantaneous operating temperature of the transceiver and providing a first sensor output signal dependent upon the operating temperature, and an integrated voltage sensor to sense a transceiver supply voltage and generate a second sensor output signal dependent upon the instantaneous transceiver supply voltage, and a processor configured to receive the first and the second sensor output signals, provide a control signal to the power amplifier module to reduce the output power of the power amplifier responsive to the first and the second sensor output signals.

Abstract: Controlling supplementary data channels using display state information involves processing, at a user device, a first broadcast signal having a content channel and a second signal having a supplementary data channel. The supplementary data channel is related to the content channel. The broadcast channel and supplementary channel are rendered to a user via the user device. The supplementary channel is at least partially rendered on a display of the user device. An event is determined that causes the display to be no longer viewable by the user. In response to determining the event, processing and rendering the supplementary data channel is ceased. The action of ceasing to process the supplementary data channel results in lowering power consumption of the user device.

Abstract: There are provided a method of communication which can reliably transmit information from a base station to a wireless terminal in a system which can reduce power consumption by intermittent operation in which the wireless terminal repeats operating state and suspended state by power on and off and the base station used for the method. The method includes the steps of storing base station information such as a command or data supplied to the wireless terminal in the base station, transferring the wireless terminal from the suspended state to the operating state to transmit information from the sensor to the base station, coupling the base station information stored in the base station to a response signal to transmit it to the wireless terminal in the operating state for transmitting the sensor information, and returning the wireless terminal to the suspended state after completing the transmission of the base station information and sensor information.

Abstract: A mobile telecommunications terminal is provided, which makes possible, so as to use the least possible amount of power, a query of messages present for the mobile telecommunications terminal in a telecommunications network. The mobile telecommunications terminal includes a receiving device for receiving messages from the telecommunications network in a receive mode. At the mobile telecommunications terminal, a query mode can be established, in which a control unit, in the event that the receive mode is switched off, activates the receive mode at at least one first predetermined time. The control unit checks whether, within a second predetermined time period after the activation of the receive mode, information was received in the receiving device regarding at least one message present in the telecommunications network (10) for the mobile telecommunications terminal.

Abstract: A method performed by a mobile communication unit (10) when operating in stand-by mode in a wireless cellular communication network. The receiver is activated in periods of relatively short duration (?0) to receive paging indicators (21) from the serving base station (20) and to receive identifying signals from the remote base station (30). After the first period a likelihood is assessed that a remote cell has been detected, and following the first period the receiver is activated in a second period of a duration (?1) depending an the assessed likelihood. If a remote cell has likely been detected, the second duration is longer than the first duration. Most of its stand-by time the mobile terminal will not detect a new cell, and most of the periods with the receiver activated will therefore be of the short first duration, the Power consumption of the receiver will be correspondingly reduced, and the stand-by time is correspondingly increased.

Abstract: A communication apparatus includes an image information acquisition unit configured to acquire new image information to be transmitted to a display terminal through a wireless access point, a storage unit configured to temporarily store the image information, a decision unit configured to decide to change a state of a wireless communication processing unit of the display terminal from a power save state to a normal state when an amount of the image information stored in the storage unit is not less than a predetermined threshold value, a message generation unit configured to generate a change instruction message in response to decision of the decision unit, and a transmission unit configured to transmit the change instruction message to the display terminal through the wireless access point to instruct the display terminal to change the state of the wireless communication processing unit from the power save state to the normal state.

Abstract: A system for conserving energy in a multi-node network (110) includes nodes (205) configured to organize themselves into tiers (305, 310, 315). The nodes (205) are further configured to produce a transmit/receive schedule at a first tier (310) in the network (110) and control the powering-on and powering-off of transmitters and receivers in nodes (205) in a tier adjacent (315) to the first tier (310) according to the transmit/receive schedule.

Abstract: A mobile communication device includes a first wireless transceiver that receives a first inbound RF signal and that transmits a first outbound RF signal based on a first power supply signal. A second wireless transceiver receives a second inbound RF signal and that transmits a second outbound RF signal based on a second power supply signal. A processing module generates at least one power mode signal based on first transmit power control data received via the first inbound RF signal. A power management circuit adjusts a first power consumption parameter of the first power supply signal and a second power consumption parameter of the second power supply signal based on the at least one power mode signal.

Abstract: Data transmitter embodiments are provided which are particularly useful as interface devices for accurate and reliable transmittal of data from high-speed data system devices such as analog-to-digital converters. Transmitter embodiments have been found to provide excellent fidelity of data transfer at high data rates (e.g., 4 gigabits/second) while consuming only a portion of the power of many conventional transmitters and requiring only a portion of the layout area of these transmitters. Transmitter embodiments provide effective control of transmitter parameters such as matched impedances, data symmetry, common-mode level, data eye and current drain.

Abstract: A system includes a host interface module and a power management module. The host interface module is configured to receive configuration information from a host processor of a wireless device. The configuration information indicates that the host processor is to (i) operate in a power save mode, and (ii) in response to the wireless device receiving data of a predetermined category from a wireless network, transition from the power save mode to an active mode. The power management module is configured to generate a first signal in response to the wireless device receiving data of the predetermined category from the wireless network. The first signal transitions the host processor from the power save mode to the active mode in which the host processor processes the data of the predetermined category.

Abstract: A wireless field device is disclosed. The field device includes a wireless communications module and an energy conversion module. The wireless communications module is configured to wirelessly communicate process-related information with another device. The energy conversion module is coupled to the wireless communications module. The energy conversion module is configured to couple to a thermal source, and to generate electricity from thermal potential energy in the thermal source.

Abstract: A method and system to determine when a wireless terminal has been paged by a servicing base station. An encoded paging burst is received on a paging channel and then decoded to produce a decoded paging burst. The decoded paging burst is processed to determine if it is a null page. When the encoded paging burst is a null page, subsequent processing operations scheduled to follow a later null page are rescheduled and immediately processed, allowing the wireless terminal to re-enter the sleep mode more quickly following the receipt of a subsequent paging burst.

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: A dynamic quantity detection device includes a detection portion, a signal process portion, and an operation mode switch portion. The detection portion detects a dynamic quantity applied from an outside and generates a sensor signal in accordance with the dynamic quantity. The signal process portion processes the sensor signal from the detection portion to have a property suitable for an external device. When the sensor signal output from the detection portion is less than or equal to a predetermined threshold value, the operation mode switch portion sets an operation mode to a power save mode by stopping an operation of the signal process portion. When the sensor signal output from the detection portion is greater than the predetermined threshold value, the operation mode switch portion switches the operation mode to a normal mode by activating the signal process portion.

Abstract: A method of forming ad hoc RSI hierarchical communication networks among pluralities of wireless transceivers includes assigning to each of the transceivers one or more common designations. A network organization routine of the transceivers operates to establish hierarchical networks based on the transceivers' common designations, resulting in a logical network organization that provides efficiencies for acquiring information from particular transceivers that share a common designation. Each transceiver's common designation is used by a digital processor of the transceiver to selectively receive data packets that are intended for receipt by transceivers sharing the particular common designation. Such a “common designation” network reduces power consumption and signal interference thereby increasing battery life.

Abstract: A communications transceiver includes a baseband processor, a receiver section, and a transmitter section that includes a power amplifier. The receiver and transmitter sections communicatively couple to the baseband processor. In a calibration operation, the baseband processor produces a test signal to the transmitter section. Further, the baseband processor causes each of a plurality of power amplifier bias settings to be applied to the power amplifier. For each of the plurality of power amplifier bias settings, the power amplifier produces an amplified test signal, the receiver section couples back a portion of the amplified test signal to the baseband processor, and the baseband processor produces a characterization of the amplified test signal respective. Based upon a plurality of characterizations of the amplified test signal and respective power amplifier bias settings, the baseband processor determines power amplifier bias control settings.

Abstract: A disclosed RF circuit includes a power amplifier that produces an RF output signal, a detector to generate a detector signal indicative of a power of the RF output signal, and an offset unit to produce an offset signal that indicates low supply voltage conditions. The power of the RF output signal is reduced, at least in part, by a control signal reflecting a combination of the detector signal and the offset signal. The circuit may include a transmitter to provide an RF input signal to the power amplifier. The transmitter may receive the control signal and adjust a power of the RF input signal based on the control signal. The detector may produce a control current indicative of the RF output signal power. The offset unit produces the offset signal based on a difference between the supply voltage and a nominal supply voltage value.

Abstract: A signal transmission apparatus of the invention comprises: a correlator 12 for shaping a spectrum of a signal; and a precoder 12 disposed on a previous stage of the correlator and including an adder which subtracts an output signal of a feedback filter from an input signal, a modulo arithmetic unit which inputs an output signal of the adder and executes modulo arithmetic operation, and the feedback filter which inputs an output signal of the modulo arithmetic unit and is provided with a transfer function obtained by subtracting 1 from a transfer function of the correlator. The correlator may be IIR filter means having a desired notch characteristic. By disposing a correlator which can freely shape a transmission signal spectrum containing a deep notch and suppress only a specified band on a receiving side, the suppression of an external noise can also be realized.

Abstract: A method and apparatus that transmits data transmission in a wireless communication device having a power supply that includes a plurality of power sources is disclosed. The method may include determining an amount of data to be transferred, determining at least one available communication mode, determining a power state of the power supply including an available amount of energy at a corresponding amount of at least one of power and current, selecting at least one communication mode based on the power state of the power supply and the amount of data to be transferred, and transferring the data using the selected at least one communication modes.

Abstract: Methods and apparatus for allocating tones for communications in the strip-symbol periods in an OFDM system are described. In a strip-symbol, the signal is transmitted using the tones in a tone subset, which is selected from a predetermined set of tone subsets according to a fixed schedule sequence. Adjacent base stations and sectors use the same set of tone subsets but different schedule sequence to minimize the number of collisions between the tone subsets used in adjacent sectors and neighboring cells.

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: Briefly, in accordance with one or more embodiments, a subscriber station in sleep mode is capable of sending and/or receiving traffic during sleep mode without violating the delay requirements of best effort traffic. Moreover, a subscriber station is capable of remaining in sleep and may optionally only be awaken in the event there is data to be transmitted from the base station to the subscriber station and/or from the subscriber station to the base station. By implementing an always sleep and need based wake up arrangement, the power consumption of the subscriber station can be reduced.

Abstract: Certain embodiments of the present invention provide a method for power management including determining at least one of an operating frequency and an operating voltage for a processor and configuring the processor based on the determined at least one of the operating frequency and the operating voltage. The operating frequency is determined based at least in part on direct user input. The operating voltage is determined based at least in part on an individual profile for processor.

Abstract: An embodiment of the present invention provides an apparatus, comprising a base station (BS) operable to communicate with at least one mobile station (MS), wherein said base station is adapted to use a need-based common channel for the transmission of control messages to idle mode and sleep mode mobile stations.

Abstract: An output power detection circuit including a detection circuit is disclosed. The output power detection circuit further includes a summing network, wherein a first voltage input of the summing network is capable of receiving a voltage that is proportional with a current flowing through an output stage of an RF amplifier circuit, a second voltage input is coupled with the detection circuit, and an output is capable of providing a summing voltage.

Abstract: A power saving method for a mobile telephone is disclosed that can increase the useful life of a battery charge by temporarily turning off non-essential telephone functions not required for call transmission or reception. The method determines whether the remaining capacity of the telephone battery is smaller than a predetermined reference value. The power saving method includes the steps of setting an activation condition for non-essential telephone functions, detecting a state that satisfies the activation condition, measuring the remaining capacity of the telephone's battery if the activation condition is satisfied, and controlling an activation operation of the non-essential telephone functions by comparing the measured remaining charged capacity with a reference value. The power saving method may include saving to and recalling from memory user preference settings when a user function is de-activated and re-activated, respectively.

Abstract: A communication apparatus uses a short range communication function for displaying a decrease of remaining battery power of a cellular phone that is in communication with the communication apparatus based on a report from the cellular phone when the remaining battery power decreases to a predetermined threshold.

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: The present invention is directed to a method for reducing the current consumption and increasing the efficiency of an RF power amplifier (PA), while maintaining the output power. The desired output power of the PA is determined and for each level of the desired output power, the load that is connected to the output stage of the PA is tuned to essentially match the output impedance of the output stage to provide maximal gain. By doing so, the dynamic RF load line has a slope that causes it to intersect with the drain-source (or emitter-collector, in case of a bipolar transistor) voltage, across the output stage, at a value that corresponds to the voltage swing required to provide the desired output power.

Abstract: A mobile device is equipped with a transmitting function to transmit data. When a power switch is turned off during data transmission, a transition is made to a transmission-during-power-off mode that continues data transmission. The transition to the transmission-during-power-off mode is performed when an inquiry is made on a screen as to whether transmission will be performed and “continue” is subsequently selected. In this mode, even when the mobile device with the power switch being turned off is carried around, data transmission is continued and data is recorded into a storage section of a home personal computer.

Abstract: A radio system comprises a power source and a power amplifier circuit coupled to the power source on a power line. The radio system also comprises an active cancellation circuit. The active cancellation circuit comprises a bi-directional DC-DC converter. The active cancellation circuit is configured to cancel low-frequency emissions from the power amplifier circuit on the power line.

Abstract: Disclosed herein is a communication system including a signal output apparatus for outputting a stream signal, and first and second communication apparatuses for performing wireless communication. The first communication apparatus includes, a communication processing section configured to perform wireless communication of the stream signal over a stream line with the second communication apparatus, a signal input section configured to input the stream signal outputted from the signal output apparatus, a voltage detection section configured to detect a voltage at the signal output apparatus, and a control section configured to perform a streaming process of transmitting the stream signal inputted from the signal output apparatus via the signal input section to the second communication apparatus over the stream line, and also perform operation control based on a result of the detection by the voltage detection section.

Abstract: A wireless communicating electronic device including a wireless network part supporting the wireless communication; an on/off selector selecting an on/off state to activate/deactivate the wireless network part; an on/off display displaying the selected state of the wireless network part; and a controller activating/deactivating the wireless network part corresponding to a selecting result of the on/off selector, and displaying the selected state of the wireless network part on the on/off display.