Power Management


  • CPC
  • H04W52/00
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H04W52/02Power saving arrangements H04W52/0203in the radio access network or backbone network of wireless communication networks H04W52/0206in access points H04W52/0209in terminal devices H04W52/0212managed by the network H04W52/0216using a pre-established activity schedule H04W52/0219where the power saving management affects multiple terminals H04W52/0222in packet switched networks H04W52/0225using monitoring of external events H04W52/0229where the received signal is a wanted signal H04W52/0232according to average transmission signal activity H04W52/0235where the received signal is a power saving command H04W52/0238where the received signal is an unwanted signal H04W52/0241where no transmission is received H04W52/0245according to signal strength H04W52/0248dependent on the time of the day H04W52/0251using monitoring of local events H04W52/0254detecting a user operation or a tactile contact or a motion of the device H04W52/0258controlling an operation mode according to history or models of usage information H04W52/0261managing power supply demand H04W52/0264by selectively disabling software applications H04W52/0267by controlling user interface components H04W52/027by controlling a display operation or backlight unit H04W52/0274by switching on or off the equipment or parts thereof H04W52/0277according to available power supply H04W52/028switching on or off only a part of the equipment circuit blocks H04W52/0283with sequential power up or power down of successive circuit blocks H04W52/0287changing the clock frequency of a controller in the equipment H04W52/029reducing the clock frequency of the controller H04W52/0293having a sub-controller with a low clock frequency switching on and off a main controller with a high clock frequency H04W52/0296switching to a backup power supply H04W52/04TPC [Transmission power control] H04W52/06TPC algorithms H04W52/08Closed loop power control H04W52/10Open loop power control H04W52/12Outer and inner loops H04W52/125cascaded outer loop power control H04W52/14Separate analysis of uplink or downlink H04W52/143Downlink power control H04W52/146Uplink power control H04W52/16Deriving transmission power values from another channel H04W52/18TPC being performed according to specific parameters H04W52/20using error rate H04W52/22taking into account previous information or commands H04W52/221using past power control commands H04W52/223predicting future states of the transmission H04W52/225Calculation of statistics H04W52/226using past references to control power H04W52/228using past power values or information H04W52/24using SIR [Signal to Interference Ratio] or other wireless path parameters H04W52/241taking into account channel quality metrics H04W52/242taking into account path loss H04W52/243taking into account interferences H04W52/244Interferences in heterogeneous networks H04W52/245taking into account received signal strength H04W52/246where the output power of a terminal is based on a path parameter calculated in said terminal H04W52/247where the output power of a terminal is based on a path parameter sent by another terminal H04W52/248where transmission power control commands are generated based on a path parameter H04W52/26using transmission rate or quality of service QoS [Quality of Service] H04W52/262taking into account adaptive modulation and coding [AMC] scheme H04W52/265taking into account the quality of service QoS H04W52/267taking into account the information rate H04W52/28using user profile H04W52/281taking into account user or data type priority H04W52/282taking into account the speed of the mobile H04W52/283Power depending on the position of the mobile H04W52/285taking into account the mobility of the user H04W52/286during data packet transmission H04W52/287when the channel is in stand-by H04W52/288taking into account the usage mode H04W52/30using constraints in the total amount of available transmission power H04W52/32TPC of broadcast or control channels H04W52/322Power control of broadcast channels H04W52/325Power control of control or pilot channels H04W52/327Power control of multicast channels H04W52/34TPC management, i.e. sharing limited amount of power among users or channels or data types H04W52/343taking into account loading or congestion level H04W52/346distributing total power among users or channels H04W52/36with a discrete range or set of values H04W52/362Aspects of the step size H04W52/365Power headroom reporting H04W52/367Power values between minimum and maximum limits H04W52/38TPC being performed in particular situations H04W52/383power control in peer-to-peer links H04W52/386centralized H04W52/40during macro-diversity or soft handoff H04W52/42in systems with time, space, frequency or polarisation diversity H04W52/44in connection with interruption of transmission H04W52/46in multi hop networks H04W52/48during retransmission after error or non-acknowledgment H04W52/50at the moment of starting communication in a multiple access environment H04W52/52using AGC [Automatic Gain Control] circuits or amplifiers H04W52/54Signalisation aspects of the TPC commands H04W52/545modifying TPC bits in special situations H04W52/56detection of errors of TPC bits H04W52/58format of the TPC bits H04W52/60using different transmission rates for TPC commands