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Systems, methods, and devices to prevent overheating from high performance device configurations in wireless networks

  • US 9,860,773 B2
  • Filed: 12/07/2015
  • Issued: 01/02/2018
  • Est. Priority Date: 12/07/2015
  • Status: Active Grant
First Claim
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1. A user equipment (UE) comprising:

  • a transceiver to communicate through a wireless communication system;

    a thermal finite-state-automaton comprising logic, at least a portion of which includes circuitry, the thermal finite-state-automaton comprising a plurality of system states and transitions between the plurality of system states, one or more of the plurality of system states based on a combination of network parameters for communicating through the wireless communication system and UE processing parameters, the plurality of system states comprising;

    a default state for operation of the UE at a sustainable performance configuration level for the network parameters and the UE processing parameters to maintain a UE temperature below a first temperature threshold;

    a high state for operation of the UE during up to a maximum time duration at a peak performance configuration level for the network parameters and the UE processing parameters, the peak performance configuration level to exceed the sustainable performance configuration level;

    a recovery state for operation of the UE during at least a minimum time duration at a reduced performance configuration level for the network parameters and the UE processing parameters, the reduced performance configuration level being less than the sustainable performance configuration level; and

    an emergency shutdown state triggerable by the UE temperature exceeding a second temperature threshold,wherein the UE is configured to autonomously transition between one or more of the plurality of system states without first being reconfigured by the wireless communication network, andwherein the UE is configured to signal, through the transceiver to the wireless communication system, a change in a power preference indicator (PPI) bit upon an autonomous transition from the high state to the emergency shutdown state before the maximum time duration lapses, or from the high state to the recovery state after the maximum time duration lapses.

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