# US 2018/0246561 A1 · Systems and methods for power management in low power communication device and system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0246561 A1 - Document ID: US20180246561A1 - Status: Published application - Kind: A1 - Application number: 15/444,157 - Filed: 2017-02-27 - Published: 2018-08-30 - Earliest claimed: 2017-02-27 - Assignees: Ubilite, Inc. - Applicants: Ubilite, Inc. - Inventors: Ismail Lakkis; Lai Xu - Web page: https://patentgrep.com/patent/US20180246561A1 ## CPC - G06F 1/3287: by switching off individual functional units in the computer system - G06F 1/263: {Arrangements for using multiple switchable power supplies, e.g. battery and AC (G06F1/30 takes precedence)} - G06F 1/3206: Monitoring of events, devices or parameters that trigger a change in power modality - G06F 1/3237: by disabling clock generation or distribution - Y02D 10/00: Energy efficient computing, e.g. low power processors, power management or thermal management - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract A radio module, comprises a battery; and a radio circuit, the radio circuit comprising: a DC-to-DC converter coupled with the batters and configured to convert a battery voltage to a first DC voltage level; at least one regulator coupled with the DC-to-DC converter and configured to covert the first DC voltage level to a second DC voltage level; at least one circuit block coupled with the at least one regulator such that the second DC voltage level is configured to provide power to the at least one circuit block; a real time clock configured to provide a clock signal to the at least one circuit block; and a management unit coupled with the at least one circuit block and configured to implement a state machine to control the at least one circuit block, wherein the state machine causes the management unit to cause the second DC voltage level to be removed from the at least one circuit during a first state comprising the state machine and, during a second state comprising the state machine, cause the second DC voltage level to be provided to the at least one circuit block, cause certain components within the circuit block to be reset, and provide a start signal to the circuit block enabling the circuit block to perform a function, and wherein the circuit block is configured to generate a signal indicating the function has been completed that is provided to the management unit, which causes the state machine to transition to a third state in which the second DC voltage is gain removed from the at least one circuit block. ## Claims ### Claim 1 A radio module, comprising: a battery; and a radio circuit, the radio circuit comprising: a DC-to-DC converter coupled with the batters and configured to convert a battery voltage to a first DC voltage level; at least one regulator coupled with the DC-to-DC converter and configured to covert the first DC voltage level to a second DC voltage level; at least one circuit block coupled with the at least one regulator such that the second DC voltage level is configured to provide power to the at least one circuit block; a real time clock configured to provide a clock signal to the at least one circuit block; and a management unit coupled with the at least one circuit block and configured to implement a state machine to control the at least one circuit block, wherein the state machine causes the management unit to cause the second DC voltage level to be removed from the at least one circuit during a first state comprising the state machine and, during a second state comprising the state machine, cause the second DC voltage level to be provided to the at least one circuit block, cause certain components within the circuit block to be reset, and provide a start signal to the circuit block enabling the circuit block to perform a function, and wherein the circuit block is configured to generate a signal indicating the function has been completed that is provided to the management unit, which causes the state machine to transition to a third state in which the second DC voltage is gain removed from the at least one circuit block. ### Claim 2 (depends on 1) The radio module of claim 1, wherein during the first state the management unit is further configured to remove the clock signal from the at least one circuit. ### Claim 3 (depends on 1) The radio module of claim 1, wherein the first and third states are the same states. ### Claim 4 (depends on 1) The radio module of claim 1, further comprising a switch coupled between the at least one regulator and the at least one circuit block, and wherein the management unit is configured to remove the second DC voltage from the at least one circuit block by controlling the switch. ### Claim 5 (depends on 1) The radio module of claim 1, further comprising a plurality of circuit blocks couple with the at least one regulator, wherein the at least one regulator is configured to provide the second DC voltage to the plurality of circuit blocks, and wherein the state machine is configured to cause the management unit to control each of the plurality of circuit blocks in the same manner as the at least one circuit block. ### Claim 6 (depends on 5) The radio module of claim 5, wherein the at least one regulator is a low drop out regulator. ### Claim 7 (depends on 1) The radio module of claim 1, wherein the plurality of circuit blocks comprises a microprocessor, a memory, a synthesizer, baseband transmit and receive blocks, and RF transmit and receive blocks. ### Claim 8 (depends on 5) The radio module of claim 5, wherein the plurality of circuit blocks comprises a retention memory configured to store register values and component values associated with the plurality of circuit blocks. ### Claim 9 (depends on 8) The radio module of claim 8, wherein the state machine is configured to implement a plurality of states. ### Claim 10 (depends on 9) The radio module of claim 9, wherein the plurality of states comprises at least the following states: power off, awake, initialized, active, sleep, listen, hibernate and deep sleep. ### Claim 11 (depends on 9) The radio module of claim 9, wherein during deep sleep, the second DC voltage is removed from all of the plurality of circuit blocks except the retention memory. ### Claim 12 (depends on 8) The radio module of claim 8, wherein the state machine is further configured to implement a plurality of power events, wherein each of the plurality of power events comprises a subset of the plurality of states. ### Claim 13 (depends on 12) The radio module of claim 12, wherein the state machine is further configured to implement a plurality of power profiles, wherein each of the plurality of power profiles comprises a subset of the plurality of power events. ### Claim 14 (depends on 13) The radio module of claim 13, wherein the state machine can be configured to implement on or more of the power profiles depending on an associated application profile.