215 results about "Power budget" patented technology

A method for the dynamically determining utilization of remote device applications based on historical application usage patterns, application power requirements, and available power reserves stored on a remote device, wherein the method includes defining a set of individual applications and activities on a remote device; determining a rate of power consumption per unit of time for each of the set of individual applications and activities; determining usage patterns of the set of individual applications and activities; determining a total expected power usage; comparing the total expected power usage to the available power reserves; and implementing a power budget if the total expected power usage exceeds the available power reserves.

A system for rack level power management, the system comprising: at least one power source; a management module; and a plurality of power managed modules in communication with the management module and connected to draw power from the at least one power source, each of the plurality of power managed modules comprising a power manager and an operating circuit, the operating circuit being operable at a plurality of power drawing levels responsive to the power manager, the management module being operative to allocate a power budget to each of the plurality of power managed modules and communicate the allocated power budgets to the power managers, each of the power managers being operative to control the operating circuit of the power managed module to be operable at a power drawing level within the allocated budget.

An apparatus comprising a power source, one or more sensors, a transceiver, and a memory. The power source may be configured to store energy to power the apparatus. The one or more sensors may be configured to receive captured data from one of a plurality of sources. The transceiver may be configured to send and receive data to and from a wireless network. The processor may be configured to execute computer readable instructions. The memory may be configured to store a set of instructions executable by the processor. The instructions may be configured to (A) evaluate an expected power usage budget calculated using a predictive model of future energy consumption and (B) (i) store the captured data in the memory in a first mode and (ii) transmit the captured data to a remote storage device in a second mode. The first mode or the second mode is selected based on characteristics of the captured data received from the sensors.

An apparatus and a method capable of effectively allocating sub-carriers for a plurality of users and transmitting the sub-carriers to users through multiple antennas in an orthogonal frequency division multiplexing (OFDMA) mobile communication system are provided. A sub-carrier allocation method reduces transmission power by taking a desired bit rate and power budget into consideration. The sub-carriers are optimally allocated to each antenna, so that peak to average power ratio (PARR) is reduced and Quality of Service (QoS) is improved. The apparatus and the method are adaptable for multi-users and obtain space diversity gain through multiple antennas.

A method for managing power in a data processing system having multiple components includes determining a power budget for the system. Activity levels during a forthcoming time interval are then predicted for each of the components. Using the predicted activity levels, the power budget is allocated among the system components. An activity limit is then established for each component based on its corresponding portion of the power budget. The activity of a component is then monitored and, if the component's activity exceeds the component's corresponding activity limit, constrained. Determining the predicted level of activity may include determining a predicted number of instructions dispatched by a processor component or a predicted number of memory requests serviced for a system memory component. Allocating the power budget includes allocating each component its corresponding standby power and a share of the system power available for dynamic powering based on the expected levels of activity.

To perform execution scheduling of function blocks so as to control the total required power of the function blocks within a supplyable power budget value, and thereby realize stable operations at low power consumption. Function block identifiers are allotted to all the function blocks, and to a RAM area that a power consumption control device can read and write, a list to store identifiers and task priority, power mode value showing power states, and power mode time showing the holding time of power states can be linked. A single or plural link lists for controlling the schedules of tasks operating on the function blocks, a link list for controlling the function block in execution currently in high power mode, a link list for controlling the function block in stop currently in stop mode, and a link list for controlling the function block in execution currently in low power mode are allotted, and thereby the power source and the operation clock are controlled by the power consumption control device.

A system and methods for connecting a graphic user interface to a powered network is disclosed. The network-powered graphic user interface system converts encoded computer user interface signals transmitted over a powered network cable to multiple signal sets, each set associated with a peripheral device interface. Methods for managing the admission of the peripheral devices are also described. Connection criteria include the power budget for the connection, device characteristics, device power requirements and the characteristics of other devices sharing the powered network connection.

In a wired data telecommunication network power sourcing equipment coupled to a powered device performs policing of power drawn by the powered device. In one embodiment, a method includes monitoring power drawn by powered devices at power sourcing equipment, each powered device having a policing limit associated therewith. If power drawn by one of the powered devices exceeds the policing limit, it is determined if a power budget of the power sourcing equipment has been exceeded. If the power budget has not been exceeded, the power sourcing equipment continues to provide power to the powered devices. If the power budget has been exceeded, action is initiated at the power sourcing equipment. The action may include sending or logging a warning, requesting the powered device to reduce its power requirement, or removing power from one of the powered devices. An apparatus for policing inline power is also disclosed.

In a method for managing power consumption among compute nodes having respective power components, an increase in the power utilization of a first compute node of the compute nodes may be detected. In response to a detected increase, a sum of the power consumption levels of the compute nodes and the requested increase in power utilization of the first compute node is compared with an allowable power budget for a compute node pool. In addition, the power state of the first compute node power component is varied in response to the comparison.

An information handling system includes modular processing resources, each having a main processor, system memory, and preferably a service processor resource. A management resource coupled to a service processor resource evaluates a system power budget and allocates power to a processing resource by indicating a critical power level. The processing resource determines a warning power level based on the critical power level and monitor its actual power consumption. If actual power consumption exceeds the critical power level, the processing resource is powered down. If actual power consumption exceeds the warning power level, the processing resource throttles its performance to conserve power and requests a power allocation increase. If actual power consumption is below the warning power level, the processing resource may request a reduction in allocated power.

A token-based power control mechanism for an apparatus including a power controller and a plurality of processing devices. The power controller may detect a power budget allotted for the apparatus. The power controller may convert the allotted power budget into a plurality of power tokens, each power token being a portion of the allotted power budget. The power controller may then assign one or more of the plurality of power tokens to each of the processing devices. The assigned power tokens may determine the power allotted for each of the processing devices. The power controller may receive one or more requests from the plurality of processing devices for one or more additional power tokens. In response to receiving the requests, the power controller may determine whether to change the distribution of power tokens among the processing devices.

A method, system, and software instructions for allocating power in a information handling system are operable to respond to a power profiling request by transitioning a processing resource to a first power consumption state and obtaining and storing a first power consumption value. The first power consumption value is then retrieved and used to allocate power to the first processing resource in response to a power on request. The first power consumption state may be a state in which power consumption approximates a maximum power consumption. The processing resource may be further transitioned to a second power consumption state and a second power consumption value obtained. The second power consumption state may be a reduced performance state. Thereafter, responsive to determining that the system lacks sufficient power budget to fulfill a pending request for power, the processing resource is throttled and power is allocated using the second power consumption value.

The current draw of a wireless device, e.g., a cordless telephone, is minimized for a cradled remote handset drawing power from an AC outlet. This allows a greater portion of the total current amperage provided by the AC to DC converter to be allowed to charge the battery in the remote unit, and reduces the overall maximum or peak value of the current draw of the wireless device. With an improved peak power budget, a smaller (and presumably less expensive) AC to DC adapter than otherwise necessary may be used to power the wireless device. In one aspect, sniff operations of the remote handset are disabled or otherwise suppressed while the remote handset is in the cradle of the base unit, e.g., receiving a quick charge or trickle charge to its battery. In a second aspect, sniff operations of the base unit are disabled or otherwise suppressed while the remote handset is in the cradle of the base unit. In a last aspect, the charging mode of the battery in the remote handset of a wireless device changes based on activity in the remote handset.

In a method for managing power consumption among compute nodes having respective power components, an increase in the power utilization of a first compute node of the compute nodes may be detected. In response to a detected increase, a sum of the power consumption levels of the compute nodes and the requested increase in power utilization of the first compute node is compared with an allowable power budget for a compute node pool. In addition, the power state of the first compute node power component is varied in response to the comparison.

A method for managing power in a data processing system having multiple components includes determining a power budget for the system. Activity levels during a forthcoming time interval are then predicted for each of the components. Using the predicted activity levels, the power budget is allocated among the system components. An activity limit is then established for each component based on its corresponding portion of the power budget. The activity of a component is then monitored and, if the component's activity exceeds the component's corresponding activity limit, constrained. Determining the predicted level of activity may include determining a predicted number of instructions dispatched by a processor component or a predicted number of memory requests serviced for a system memory component. Allocating the power budget includes allocating each component its corresponding standby power and a share of the system power available for dynamic powering based on the expected levels of activity.

The power budgeter controls the rate of data flow in one or more transceivers among a plurality of transceivers. The power budgeter monitors aggregate transceiver activity (data flow) during a predefined period, and limits transceiver data transmit and receive rates during times when the aggregate transceiver activity would otherwise exceed a predefined threshold. If total data flow during the monitored time period exceeds the threshold, data flow through the active transceiver during the next (second) time period is limited. Data flow rates are limited in a transceiver by shutting off transceivers (receiver and / or transmitter) for a specified portion of the second time period. In other types of transceivers, the transmitter and / or receiver may be forced into a low-power idle state or similar operating condition for a specified portion of the second predefined time period.

A method, system, and software instructions for allocating power in a information handling system are operable to respond to a power profiling request by transitioning a processing resource to a first power consumption state and obtaining and storing a first power consumption value. The first power consumption value is then retrieved and used to allocate power to the first processing resource in response to a power on request. The first power consumption state may be a state in which power consumption approximates a maximum power consumption. The processing resource may be further transitioned to a second power consumption state and a second power consumption value obtained. The second power consumption state may be a reduced performance state. Thereafter, responsive to determining that the system lacks sufficient power budget to fulfill a pending request for power, the processing resource is throttled and power is allocated using the second power consumption value.

One embodiment provides a power management method for servers in a data center. A group of servers is selected, and the total power allocated to a group of servers is limited to within a group power budget. A separate server power allocation is individually requested for each of a plurality of the servers. Within the constraints of the group power budget, the requested server power allocations are selectively granted for a specified magnitude and duration. The granted server power allocations are also selectively renewed, either automatically or upon request of the servers. Each server that has not received a renewed server power allocation from a group power management entity upon the expiration of the specified duration automatically reduces its own power consumption, such as by the server powering itself off.

Systems and methods are disclosed for dynamically allocating power for a system having non-volatile memory. A power budgeting manager of a system can determine if the total amount of power available for the system is below a pre-determined power level (e.g., a low power state). While the system is operating in the low power state, the power budgeting manager can dynamically allocate power among various components of the system (e.g., a processor and non-volatile memory).

An equipment rack load modulation system and method are presented. An equipment rack aggregate thermal and power budget is determined. The aggregate thermal and power budget is allocated based upon rack equipment loaded in an equipment rack. The rack equipment is then operated in accordance with the allocation of the aggregate thermal and power budget.

A control processor manages the power budget in a drive enclosure and is within the drive enclosure which monitors in real time a redundantly configured power supply unit, drives, interposers, and temperature sensors, and determines the power settings for each drive to avoid overload and overheating in the system. The control processor dynamically adjusts the mode of operation as needed during operation through the SAS interposer. A localized monitoring and control mechanism eliminates the need for extraneous coordination of information across various entities that access the storage. Data tunneling takes place directly between the compute nodes and target drives through the SAS expander and interposer, and does not need buffering the pending IO requests in the DRAM.

A computer-implemented method enables rack-level predictive power capping and power budget allocation to processing nodes in a rack-based IHS. A rack-level management controller receives node-level power-usage data and settings from several block controllers, including current power consumption and an initial power budget for each node. A power consumption profile is generated based on the power-usage data for each node. A total available system power of the IHS is identified. A system power cap is determined based on the power consumption profiles and the total available system power. A current power budget is determined for each node based on an analysis of at least one of the power consumption profile, the initial power budget, the current power consumption, the system power cap, and the total available system power. A power subsystem regulates power budgeted and supplied to each node based on the power consumption profiles and the system power cap.

A dynamic power budget allocation system includes a plurality of powered subsystems. A power system controller is coupled to the plurality of powered subsystems. The power system controller is operable, for each of a plurality of time intervals, to retrieve power usage data from each of the plurality of subsystems during a current time interval. The power system controller is then operable to project power requirements for the plurality of subsystems for a subsequent time interval using the power usage data. The power system controller is then operable to determine at least one power setting for at least one of the plurality of subsystems using the power requirements, and program the at least one of the plurality of subsystems with the at least one power setting. Each powered subsystem may include a voltage regulator that provides the power usage data and is programmed with the at least one power setting.

The present invention provides virtual batteries for a wireless communication device. Generally speaking, a virtual battery is a logical construct on a wireless communication device that powers a defined set of wireless communication device applications and has a defined power budget from one or more physical batteries on the device. Through judicious assignment of wireless communication device applications and power budgets to virtual batteries, a user of a wireless communication device can efficiently allocate power among competing wireless communication device applications.

Disclosed herein is an optical access network system in which the transmission quality of an upstream signal is remarkably improved in an optical access network in which a Reflective Semiconductor Optical Amplifier (RSOA) is used as the light source for each subscriber. The most important characteristics of the present invention are that a Manchester modulation format is used as a modulation format for a downstream signal in an optical access network system in which an RSOA is used as the light source for each subscriber, so that the problem of deterioration of the transmission quality of a remodulated upstream signal, occurring when an RSOA is used as the light source for each subscriber, is solved, and thus the transmission performance of an upstream signal and the power budget performance of the entire system are improved. According to the present invention, an RSOA-based WDM PON system, in which performance at a power budget and the transmission performance of a remodulated upstream signal are improved, can be implemented.

A performance measure (e.g., processor speed) for computing components such as servers is optimized by creating models of power consumption versus the performance measure for each server, adding the power models to derive an overall power model, and calculating an optimum set point for the performance measure which corresponds to a power limit on the servers using the overall power model. The set point is then used to set power budgets for the servers based on their power models, and the servers maintain power levels no greater than their respective power budgets. The server power models are preferably created in real time by monitoring power consumption and the performance measure to derive sets of data points for the servers, and performing regression on the sets of data points to yield power models for the servers. Multiple server power models may be created for different program applications.

A system for rack level power management, the system comprising: at least one power source; a management module; and a plurality of power managed modules in communication with the management module and connected to draw power from the at least one power source, each of the plurality of power managed modules comprising a power manager and an operating circuit, the operating circuit being operable at a plurality of power drawing levels responsive to the power manager, the management module being operative to allocate a power budget to each of the plurality of power managed modules and communicate the allocated power budgets to the power managers, each of the power managers being operative to control the operating circuit of the power managed module to be operable at a power drawing level within the allocated budget.

The present invention provides an apparatus providing plural wireless transceivers within a desired power budget and associated methods. A plurality of wireless communication modules, each having a lower-power state and a higher-power state are provided, drawing power from a common source. Arbitration is performed to control which of the plurality of wireless communication modules are in the higher-power state, thereby controlling total power delivered by the power source to the plurality of wireless communication modules.

In a wired data telecommunication network power sourcing equipment coupled to a powered device performs policing of power drawn by the powered device. In one embodiment, a method includes monitoring power drawn by the powered devices at power sourcing equipment, each powered device having a policing limit associated therewith. If power drawn by one of the powered devices exceeds the policing limit, it is determined if a power budget of the power sourcing equipment continues to provide power to the powered devices. If the power budget has been exceeded, action is initiated at the power sourcing equipment. The action may include sending or logging a warning, requesting the powered device to reduce its power requirement or removing power from one of the powered devices. An apparatus for policing inline power is also disclosed.