# US 7,610,495 B2 · Method and apparatus for power management using transmission mode with reduced power > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,610,495 B2 - Document ID: US7610495B2 - Status: Granted - Kind: B2 - Application number: 10/874,834 - Filed: 2004-06-23 - Published: 2005-05-26 - Granted: 2009-10-27 - Earliest claimed: 2003-11-25 - Assignees: Agere Systems Inc. - Inventors: Kameran Azadet; Leilei Song - Web page: https://patentgrep.com/patent/US7610495B2 ## CPC - H04W 52/0277: {according to available power supply, e.g. switching off when a low battery condition is detected} - Y02D 30/70: in wireless communication networks - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - 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 method and apparatus are disclosed for power management of an electronic device. The present invention reduces power consumption of an electronic device that communicates over a network by selecting a transmission mode with reduced power consumption as the battery level gets lower. A disclosed power management process monitors the battery level of an electronic device and selects a transmission mode (e.g., a transmission rate) with a lower power consumption when the battery power level reaches one or more predefined threshold levels. ## Claims ### Claim 1 A method for power management in an electronic device that communicates over a network, said method comprising the steps of: monitoring a battery level of said electronic device; evaluating a power consumption of said electronic device in one or more transmission modes; establishing one or more threshold levels based on said power consumption information; and selecting a rate of a substantially continuous transmission mode based on a comparison of said battery level to said one or more threshold levels. ### Claim 2 (depends on 1) The method of claim 1, wherein said selecting step further comprises the step of selects a transmission mode with a lower power consumption when said battery level reaches one or more predefined threshold levels. ### Claim 3 (depends on 2) The method of claim 2, wherein said transmission modes and corresponding predefined threshold levels are stored in a table. ### Claim 4 (depends on 1) The method of claim 1, wherein said monitoring step is performed periodically. ### Claim 5 (depends on 1) The method of claim 1, wherein said transmission mode includes a transmission rate. ### Claim 6 (depends on 1) The method of claim 1, wherein said method may be selectively disabled by a user. ### Claim 7 (depends on 1) The method of claim 1, further comprising the step of evaluating a power consumption of said electronic device in one or more transmission modes is performed periodically. ### Claim 8 (depends on 1) The method of claim 1, further comprising the step of notifying a user that said transmission mode has been adjusted based on said battery level. ### Claim 9 An electronic device, comprising: one or more batteries; one or more ports for network communication; a memory; and at least one processor, coupled to the memory, operative to: monitor a battery level of said electronic device; evaluate a power consumption of said electronic device in one or more transmission modes; establish one or more threshold levels based on said power consumption information; and select a rate of a substantially continuous transmission mode based on a comparison of said battery level to said one or more threshold levels. ### Claim 10 (depends on 9) The electronic device of claim 9, wherein said processor is further configured to select a transmission mode with a lower power consumption when said battery level reaches one or more predefined threshold levels. ### Claim 11 (depends on 10) The electronic device of claim 10, wherein said transmission modes and corresponding predefined threshold levels are stored in a table in said memory. ### Claim 12 (depends on 9) The electronic device of claim 9, wherein said processor is further configured to perform said monitoring step periodically. ### Claim 13 (depends on 9) The electronic device of claim 9, wherein said transmission mode includes a transmission rate. ### Claim 14 (depends on 9) The electronic device of claim 9, wherein said processor is further configured to selectively disable said battery monitoring and selection of a transmission mode. ### Claim 15 (depends on 9) The electronic device of claim 9, wherein said processor is further configured to perform said evaluation of a power consumption of said electronic device in one or more transmission modes periodically. ### Claim 16 (depends on 9) The electronic device of claim 9, wherein said processor is further configured to notify a user that said transmission mode has been adjusted based on said battery level. ### Claim 17 A power management driver for an electronic device that communicates over a network, said driver implementing the steps of: monitoring a battery level of said electronic device; evaluating a power consumption of said electronic device in one or more transmission modes; establishing one or more threshold levels based on said power consumption information; and selecting a rate of a substantially continuous transmission mode based on a comparison of said battery level to said one or more threshold levels. ### Claim 18 (depends on 17) The power management driver of claim 17, wherein said selecting step further comprises the step of selects a transmission mode with a lower power consumption when said battery level reaches one or more predefined threshold levels. ### Claim 19 (depends on 17) The power management driver of claim 17, wherein said transmission mode includes a transmission rate. ### Claim 20 (depends on 17) The power management driver of claim 17, wherein said power management driver may be selectively disabled by a user.