Abstract: Methods and apparatus for optimizing power consumption in a wireless device by determining optimal signal release timing are disclosed. An accumulated data volume of one or more data calls received and transmitted in a device is measured during a first time period in which the device is in a connected state. After this period, the accumulated data volume is compared to a data volume threshold. Based on this comparison, a second time period may be set to either short or long time values, where the second time period is a time of the connected state of the device. After the second time period expires, SCRI signaling is sent to release the connected state of the device. By selectively setting the timing of the connected state of a device based on accumulated data volume during a first period, the timing for signaling of release from a connected state is optimized.

Abstract: Techniques for assigning multipaths to finger processors to achieve the desired data performance and low power consumption are described. A search is initially performed to obtain a set of multipaths for a transmission from at least one base station. At least one multipath (e.g., the minimum number of multipaths) having a combined performance metric (e.g., a combined SNR) exceeding a threshold is identified. The at least one multipath is assigned to, and processed by, at least one finger processor to recover the transmission from the base station(s).

Abstract: A method of operating a wireless memory device is provided. In the method, the wireless memory device detects the power state of a power supply source in response to a power measurement command received from a host and controls data transmission/reception based on the measured power state.

Abstract: A wireless communications power saving method and apparatus is provided. The method includes, when no reverse link traffic exists and no forward link traffic has been received for a predetermined amount of time, establishing, at a terminal, a reverse link transmission pilot signal duty cycle, and boosting overhead channel signal transmission power during ON slots and gating overhead channel and pilot signal transmission power during OFF slots. The design further includes estimating, at the terminal, an available data transmission rate, determining an actual data transmission rate, setting a terminal transmission duty cycle for a next period based on the estimated available data transmission rate, the actual data transmission rate, and a margin of error, and transmitting data from the terminal according to the terminal transmission duty cycle.

Abstract: A mechanism can be implemented in a communication unit of a network device to utilize periods of silence encountered in voice communication to conserve power at the network device. In some embodiments, it can be determined that one or more packets of a received RF signal comprise audio data. The communication unit of the network device can determine whether the audio data associated with the one or more packets comprises voice information. The network device can switch to a power save mode based, at least in part, on determining that the audio data associated with the one or more packets does not comprise voice information.

Abstract: The present invention discloses a communication signal multiplexing method, a radio communication system, and a radio equipment controller (REC). Taking the common public radio interface (CPRI) standard as an example, by carrying multiple CPRI links on limited physical links (CPRI-MUX), generally one high-speed physical link, physical bandwidth is used more efficiently and the number of interconnected interfaces and the system cost are reduced without compromising with the CPRI standard is maintained. When the bandwidth provided by the high-speed physical link is insufficient, more physical links can be adopted.

Abstract: Provided is a method and apparatus for efficiently transmitting and receiving a frame including a header and a payload in a communication system. If the number of repeated items in the content of a header of the frame is high, specific preambles are allocated to the repeated items and the repeated items are omitted. Accordingly, data transfer efficiency can be improved.

Abstract: A method and apparatus for estimating a signal-to-interference ratio (SIR) are disclosed. A received signal includes signal energy on multiple basis functions. Desired signal energy in the received signal is transformed onto a first basis function with constant polarity. The desired signal energy is estimated by coherently averaging signal energy on the first basis function. A noise power is estimated by averaging signal energy on each basis function other than the first basis function and accumulating the averaged signal energy from the basis function other than the first basis function and scaling the accumulated signal energy to account for a noise estimate from the first basis function. An SIR is estimated by dividing the desired signal energy by the noise power.

Abstract: A method for transmitting data between a radio transmitting device and a radio receiving device includes transmitting a frame structure over a radio channel, the frame structure including a control channel and a data channel. The method further includes detecting a quality degradation of the radio channel, selecting a bit from the data channel and increasing a transmission power of the selected bit when the quality degradation of the radio channel is detected.

Abstract: A method and apparatus for reconfiguring a user equipment configured for multi-carrier operation from a first downlink control information set to a second downlink control information set while carrier aggregation is being used, including receiving a physical downlink control channel with downlink control information formats containing a carrier indicator field.

Abstract: A system and method for determining an initial mean open loop power level of a pilot channel of a reverse traffic channel for a mobile terminal. The initial open loop power level enables handoff of an active call from a first access network to a second access network. A handoff initialization request is from the first access network. A mean received power level of the forward link of the second access network is measured and transmitted to the second access network. An open loop power adjustment factor is received from the second access network. The initial mean open loop power level is set based on the open loop power adjustment factor.

Abstract: Power control of a digital datalink system within an aeronautical telecommunication network is described herein. According to embodiments, the system is configured to calculate the transmission power of an air-based communication station, based on the transmission power used by a ground-based communication station, wherein the transmission power of the air-based communication station is sot to a decibel level higher than or equal to the transmission power of the ground-based communication station.

Abstract: A method of modulating transmission power to facilitate in-device coexistence between wireless communication technologies is provided. The method can include determining a scheduled time period during which data is received by a device via a first wireless communication technology. The method can further include reducing a transmission power of a transmission from the device via a second wireless communication technology to a threshold level prior to the scheduled time period and controlling the transmission power so that the transmission power does not exceed the threshold level during the scheduled time period. The method can additionally include, subsequent to the time period, increasing the transmission power to a level exceeding the threshold level.

Abstract: Systems, devices, and methods for adjusting a transmission power at a femto node are described herein. According to the systems, devices, and methods herein, a measurement of a signal transmitted from a transmitting node may be communicated to the femto node, for example from a user equipment or a neighboring femto node, for use in adjusting the power. The transmitting node may comprise the femto node, a macro node, or a neighboring femto node. In addition, statistics regarding such measurements may be communicated to the femto node for use in adjusting the power. The femto node may also adjust the power based on unsuccessful registration attempts or interference communications received at the femto node.

Abstract: A dynamic shared forward link channel (or “data” channel) is used to send multicast data to a group of wireless devices, e.g., using a common long code mask for the data channel. Reference power control (PC) bits are also sent on the data channel and used for signal quality estimation. A shared forward link control channel is used to send user-specific signaling to individual wireless devices, e.g., using time division multiplexing (TDM) and a unique long code mask for each wireless device. A shared forward link indicator channel is used to send reverse link (RL) PC bits to the wireless devices, e.g., using TDM. The data channel is jointly power controlled by all wireless devices receiving the data channel. The control and indicator channels are individually power controlled by each wireless device such that the signaling and RL PC bits sent on these channels for the wireless device are reliably received.

Abstract: Apparatuses may stay synchronized with a network via a beacon signal that is transmitted at a set interval. Various communication-related activities may be planned around an instance when a beacon signal is expected, or a target beacon transmission time (TBTT). While some networked apparatuses are active during every TBTT, other apparatuses may operate using a diluted beacon period that is an integer multiple of the network beacon signal interval. Diluted beacon intervals may initiate periods of time during which apparatuses may become “aware” of other apparatuses. Awareness may comprise information related to communication configuration, apparatus status, and services offered by the various apparatuses in the network. Awareness information obtained during an awake window may also comprise information on data-related tasks that are pending in one or more apparatuses which may allow for the control of further data conveyance activities.

Abstract: The invention relates to a method and an arrangement for obtaining efficient radio resource utilization in a communication network comprising a communication network entity transmitting data on a downlink channel over a radio interface to one or more user equipment, each of which is transmitting data on an uplink channel to said communication network entity over said radio interface. The communication network entity receives transmit power control (TPC) commands on said uplink channel and, further, monitors a channel quality indicator (CQI) on said uplink channel from said user equipment in order to obtain channel quality indicator measurements. If there is a channel quality indicator available, the communication network entity calculates a required downlink power. Otherwise, the communication network entity decodes said received transmit power control commands.

Abstract: A cell measurement method used in a mobile station camping on a serving cell is provided, wherein the serving cell sends system information of neighbor cells to the mobile station. A first set of the neighbor cells is determined based on a measurement rule for cell reselection. A second set of the neighbor cells is determined based on a report request for radio link establishment. A subset is chosen from the second set. Finally, the neighbor cells of a union of the first set and the subset are measured.

Abstract: A method and system for power saving communication in a wireless network is provided. One implementation involves establishing a wireless bus between two electronic wireless stations, and at a receiving wireless station receiving an incoming wireless signal from a wireless transmitting station via a wireless communication medium, initiating processing the signal for detecting if the signal comprises a wireless bus tracking signal, and if the signal comprises a wireless bus tracking signal, then ceasing further processing of the signal to conserve power.

Abstract: Systems and methods are provided for detecting forward power sent to an antenna and reflected power reflected back from the antenna. Embodiments of the present invention provide systems and methods for measuring forward and reflected power and controlling the amount of power supplied to the antenna responsive to these measurements. Embodiments of the present invention enable the power sent to the antenna to be dynamically altered when antenna impendence changes (e.g., when the antenna gets too close to another object).

Abstract: Systems and methods for optimizing the power of a battery in a mobile device are provided. The systems and methods include receiving a request from at least one of a plurality of applications running on the mobile device. The systems and methods further include determining user characteristics from interacting with at least one of the applications and determining a user dwell time threshold based upon the user's interactions with an application. The systems and methods further include buffering requests if the user dwell time is less than the user dwell threshold level.

Abstract: An interactive assistant for managing telephone communications and services is disclosed. In one of many possible method embodiments, a chat interface is provided to a device associated with an intended recipient of an incoming voice call. A chat message from the intended recipient is received through the chat interface. The chat message is presented to a calling party associated with the incoming call prior to a disposition of the call being determined. In other embodiments, an interface provides controls for individually managing calls on a conference call, without affecting other calls on the conference call.

Abstract: A device for communicating in a wireless network, such as, for example, a non-AP STA, is adapted to send a trigger frame to an AP for group-addressed frames. In addition, an AP may be adapted to be triggered for group-addressed frames to deliver the group-addressed frame to a non-AP STA. The group-addressed frames could include data frames or management frames or both. Such a device or non-AP STA can advantageously stay in a power save mode until it is ready to wake up to send a trigger frame to the AP, and does not need to wake up at regular intervals, such as at every DTIM time interval, to listen for beacons from the AP and to receive any group-addressed frames destined for it and buffered at the AP. In this way, the battery life of the device may be extended.

Abstract: Systems, devices, and methods for adjusting a transmission power at a femto node are described herein. According to the systems, devices, and methods herein, a measurement of a signal transmitted from a transmitting node may be communicated to the femto node, for example from a user equipment or a neighboring femto node, for use in adjusting the power. The transmitting node may comprise the femto node, a macro node, or a neighboring femto node. In addition, statistics regarding such measurements may be communicated to the femto node for use in adjusting the power. The femto node may also adjust the power based on unsuccessful registration attempts or interference communications received at the femto node.

Abstract: The described aspects relate to systems and methods for power control in wireless communication systems. In particular, the described aspects relate to dynamically providing, based on activities on HSUPA channels, a downlink power control adjustment during a data transmission from a user equipment device to a base station or node B device in a HSUPA communication system. The method determines a Signal-to-Interference Ratio (SIR) target for the Enhanced Transport Channel (E-DCH) based on a transmitter's logic that determines the required power level of the downlink grant control channels. This target can then apply to the final target determined on a plurality of other transport channels for the receiver to adjust the power of its downlink channels.

Abstract: In embodiments, a transmitting device sends a time reference field to a receiving device when indicating that no more frames will be sent to the receiving device. The time reference informs the receiving device of the length of time that the transmitting device has committed not to transmit to the receiving device. When operating in conformance with the ECMA-368 standard, the time reference allows the transmitting device to control the length of the commitment period after the MORE FRAMES bit is set to zero. In this way, the commitment not to transmit may be made for a shorter time than the time until the beginning of the following Distributed Reservation Protocol (DRP) reservation block or the time to the beginning of the following superframe. The time reference may be added in the Medium Access Control header or included in a vendor-specific message, for example.

Abstract: Techniques for adjusting transmit power to mitigate both intra-sector interference to a serving base station and inter-sector interference to neighbor base stations are described. This may be done by combining interference information from multiple base stations.

Abstract: A method and apparatus include a scheduling entity (208) for selecting a coding scheme and transmitting the frame (304) across a communication network (100). The controller (206) coupled to scheduling entity (208) determines a transmission gain for the frame based on the received signal interference and assigned reliability factor for the communication node. The scheduler entity (208) selects the lowest coding scheme for the frame corresponding to the determined transmission gain. The transceiver (214) coupled to controller (206) via interface (212) receives the encoded frame and transmits the frame to a plurality of mobile stations in the communication network (100).

Abstract: A radio base station 10 according to the present invention includes a reference channel power setting unit 11 configured to change a transmission power of a reference channel, an associated channel power setting unit 12 configured to set a relative power offset of an associated channel by using a value relative to the reference channel, a power parameter holding unit 13 configured to hold power parameters set by the reference channel power setting unit 11 and associated channel power setting unit 12, a power parameter adjustment unit configured to adjust the relative power offset of the associated channel in a case where the transmission power of the reference channel is changed, and a transmitter 15 configured to transmit a signal of each channel on the basis of information in the power parameter holding unit 15, wherein the power parameter adjustment unit 14 maintains the transmission power of the associated channel unchanged even though the transmission power of the reference channel is changed.

Abstract: Receivers, apparatuses, and methods associated with packet classification based power saving receiver are described. In one embodiment, an 802.11 receiver includes receive and control units. The receive unit has a higher power receive frame state and a lower power ignore frame state. The receive unit, when in the receive frame state, receives radio frequency (RF) signals associated with an incoming frame and provides decoded information concerning the incoming frame. The receive unit, when in the ignore frame state, does not receive RF signals associated with the incoming frame and/or does not decode RF signals associated with the incoming frame. The control unit controls the receive unit to enter the ignore frame state upon determining that the incoming frame is to be filtered and to return to the receive frame state in time to receive a subsequent incoming frame and perform end of frame processing consistent with the CSMA/CA protocol.

Abstract: An apparatus for performing a soft handoff including a power estimator, cell selector, and feedback channel generator. The power estimator receives a plurality of pilot signals that each correspond to an associated base station within an active set registry, and estimates a power level for each of the plurality of pilot signals. The cell selector is coupled to the power estimator, and is configured to select one or more base stations within the active set registry for selective blanking of a corresponding one or more of the plurality of pilot signals during a soft handoff operation. The feedback channel generator is coupled to the cell selector, and is configured to generate a cell selection feedback signal indicating the one or more base stations, where the cell selection feedback signal is subsequently transmitted to the one or more base stations, and where the cell selection feedback signal directs the one or more base stations to perform the selective blanking.

Abstract: An apparatus and process for allocating carriers in a multi-carrier system is described. In one embodiment, the process comprises determining a location of a subscriber with respect to a base station, selecting carriers from a band of carriers to allocate to the subscriber according to the location of the subscriber with respect to the base station, and allocating selected carriers to the subscriber.

Abstract: A method is provided for triggering migration of call session state information. The method includes determining whether to migrate a network access agent associated with an access terminal in a wireless communication system based on at least one of mobility information associated with the access terminal and status information associated with the wireless communication system.

Abstract: A transmission power control method for controlling a transmission power of an E-AGCH including an absolute transmission rate of uplink user data, which is transmitted from a cell controlled by a radio base station to a mobile station, includes: notifying, from a radio network controller to the radio base station which controls a serving cell, an offset between the transmission power of the E-AGCH and a transmission power of a DPCH, when the mobile station is performing a soft-handover with the serving cell and non-serving cells; determining, at the serving cell to which the offset is notified, the transmission power of the E-AGCH based on the notified offset; and transmitting, at the serving cell, the E-AGCH to the mobile station using the determined transmission power.

Abstract: Embodiments of the present disclosure provide techniques for reducing power consumption by wireless devices through transmission output power control.

Abstract: A radio base station eNB according to the present invention includes: a CQI reception unit 11 configured to receive CQI in PDSCH from a mobile station UE; a CQI adjustment unit 13 configured to adjust the received CQI based on a transmission acknowledgement result for a downlink data signal transmitted via the PDSCH; a selectable TF number calculation unit 22 configured to calculate a selectable maximum transport block size based on the number of mobile stations UE in each scheduling unit period; and an MCS selection unit 15 configured to select a modulation scheme and a coding rate, which are to be applied to each resource blocks in the PDSCH, based on the adjusted CQI and a transmission format corresponding to the calculated selectable maximum transport block size.

Abstract: An image forming apparatus is provided with a processing unit that performs a predetermined process, a power-supply shutting unit that shuts off power supply to the processing unit when a predetermined door is opened, a voltage detecting unit that detects a decrease in voltage at a point located posterior to the power-supply shutting unit, and a communication control unit that does not initiate communication with the processing unit if the decrease in voltage is detected by the voltage detecting unit before a start of the communication with the processing unit, and judges the just-ended communication as abnormal if the decrease in voltage is detected by the voltage detecting unit after the end of the communication with the processing unit.

Abstract: A transmitting apparatus selects any one of areas included in a transmission area of a first signal used for a first process, and transmits the first signal by using the selected area. The area is selected according to a type of information to be transmitted among a plurality of types of information capable of being transmitted to a receiving apparatus. The receiving apparatus receives the first signal transmitted by the transmitting apparatus, and performs a second process by using information according to the area in which the first signal is received.

Abstract: Discontinuous reception (DRX) operation may be utilized to maintain connection with user equipment (UE) by increasing the effective control channel transmission periodicity. UEs may be configured with a compatible control channel transmission periodicity such that multiple UEs may share a resource in a time-division-multiplexed manner using DRX offsets and periodicity, effectively extending control channel transmission periodicity through resource overloading.

Abstract: A programmable controller and software that monitors periods an RF transmitter is active and a output power level during those periods of activity. These two values are multiplied together and accumulated over time to provide a value for the RF emissions for some period. A limit is set for the RF emissions for any period and if the RF emissions exceeds (or is expected to exceed given the current rate) the set limit, the system limits the subsequent emissions to not exceed the set limit. This reduction in emissions rate come at the cost of a small performance reduction.

Abstract: A method and apparatus for controlling the transmit power of a mobile BS in a wireless communication system are provided. The method includes determining a measurement value for determining if a noise power level is higher than an interference power level, when the measurement value is higher than a threshold value, determining that the noise power level is higher than the interference power level, and, when it is determined that the noise power level is higher than the interference power level, increasing transmit power.

Abstract: Techniques for performing power control and handoff are described. In an aspect, power control (PC) is supported with multiple PC modes such as an up-down PC mode and an erasure-based PC mode. One PC mode may be selected for use. Signaling may be sent to indicate the selected PC mode. If the up-down PC mode is selected, then a base station estimates the received signal quality for a terminal and sends PC commands to direct the terminal to adjust its transmit power. If the erasure-based PC mode is selected, then the base station sends erasure indications that indicate whether codewords received from the terminal are erased or non-erased. For both PC modes, the terminal adjusts its transmit power based on the power control feedback (e.g., PC commands and/or erasure indications) to achieve a target level of performance (e.g., a target erasure rate for the codewords). The erasure indications may also be used for handoff.

Abstract: A system, components and methods provide controlled transmitter power in a wireless communication system in which both dedicated and shared channels are utilized. A network unit preferably has a receiver for receiving UL user data from WTRUs on UL DCHs and at least one UL SCH and a processor for computing target metrics for UL DCHs based on the reception of signals transmitted by a WTRU on an UL DCH associated with an UL SCH usable by the WTRU. A shared channel target metric generator is provided that is configured to output a respective UL SCH target metric derived from each computed UL DCH target metric.

Abstract: In one embodiment, a method for providing echo cancellation in a wireless repeater includes: adding the pilot signal to a transmit signal; receiving a receive signal being the sum of a remote signal, a feedback pilot signal and a feedback transmit signal; cancelling the feedback transmit signal from the receive signal using a currently available feedback channel estimate and generating a first echo cancelled signal; generating an updated feedback channel estimate using the first echo cancelled signal and the pilot signal as a reference signal; cancelling the feedback transmit signal and the feedback pilot signal from the receive signal using the updated feedback channel estimate and generating a second echo cancelled signal; and amplifying the second echo cancelled signal as the transmit signal. In another embodiment, the feedback pilot signal is cancelled from the first echo cancelled signal using the updated feedback channel estimate to generate the second echo cancelled signal.

Abstract: Provided is a communication device which transmits a signal by setting appropriate transmission power under the situation that the communication device moves.

Abstract: A method and system for wireless communication in a wireless station including a transceiver with multiple antennas, is provided. In one implementation, the wireless station performs multiple modulation communication by multiplexing different signal carrier modulation formats by antenna cross polarization multiplexing, including mapping the modulation formats to multiple antenna cross polarization branches. Communication power is allocated for each polarization branch by selectively distributing power to each of the polarized antennas based on at least one of: application data rate requirements, communication link quality indication (LQI) and delay spread of cross polarized channels. Data is transmitted utilizing the modulation formats simultaneously at the same frequency over multiple cross polarized antennas.

Abstract: An LTE-A system and power control method for controlling cell interference based on codeword-specific transmission power adjustment with a transmission power control offset parameter. The method includes transmitting a parameter KS signaled by a higher layer and codeword-specific power control parameters from a base station to a terminal; calculating gains at the terminal, using the codeword-specific power control parameters and the parameter KS; calculating, at the terminal, codeword-specific transmit powers according to the gains; and transmitting, from the terminal to the base station, at least two codewords at the codeword-specific transmit powers.

Abstract: A system and method for adjusting an energy efficient Ethernet (EEE) control policy using measured power savings. An EEE-enabled device can be designed to report EEE event data. This reported EEE event data can be used to quantify the actual EEE benefits of the EEE-enabled device, debug the EEE-enabled device, and adjust the EEE control policy.

Abstract: A radio base station communicating with a radio terminal, comprising a control unit configured to perform scheduling of a radio resource with respect to the radio terminal, wherein the control unit estimates transmission power of the radio terminal, which is calculated by the radio terminal, based on information on transmission power notified from the radio terminal, calculates power of an uplink signal from the radio terminal based on uplink propagation loss between the radio base station and the radio terminal, and performs the scheduling based on a difference between a first power obtained by the estimation of the transmission power of the radio terminal and a second power obtained by the calculation of the power of the uplink signal.

Abstract: A method and apparatus for adjusting the transmission power level or transmission data rate between a plurality of stations located within the coverage area of a basic service set (BSS) or in an independent basic service set (IBSS) in a wireless local area network (WLAN). The receiving station extracts a transmission data rate from an incoming signal, determines a signal-to-noise ratio (SNR) for the incoming signal, and then calculates noise margin information based on a difference between the SNR of the incoming signal and a minimum SNRMIN for the extracted data rate. The noise margin is then transmitted back to the original transmitting station and using the noise margin information, the transmit power level and/or the transmission rate of this station may be adjusted accordingly.