System and method of determining standby time for mobile stations
First Claim
1. A method of determining standby time for a mobile station, the method comprising:
- generating a simulated battery voltage, by a battery simulator, for the mobile station;
programming the battery simulator with an equivalent series resistance (ESR) equal to the ESR of a battery, wherein the ESR is used in generating the simulated battery voltage;
measuring current consumption of the mobile station in standby mode using the simulated battery voltage;
determining an available battery capacity of the battery for the mobile station; and
determining a standby time for the mobile station based on the current consumption and the available battery capacity, wherein the measuring of the current consumption is performed for a time period less than the standby time of the mobile station.
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Accused Products
Abstract
A method and system for determining standby time for a mobile station uses a battery simulator, a base station emulator, a computer to control the test equipment and MSUT for testing a mobile station. The computer includes a module for determining a radio off battery voltage, a module for deriving a battery capacity in dependence upon the radio off battery voltage, a module for measuring battery capacity usage in a predetermined time while the mobile station is in standby mode and a module for determining a standby time for the mobile station in dependence upon the battery capacity and the battery capacity usage, where the predetermined time is less than the standby time.
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Citations
23 Claims
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1. A method of determining standby time for a mobile station, the method comprising:
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generating a simulated battery voltage, by a battery simulator, for the mobile station; programming the battery simulator with an equivalent series resistance (ESR) equal to the ESR of a battery, wherein the ESR is used in generating the simulated battery voltage; measuring current consumption of the mobile station in standby mode using the simulated battery voltage; determining an available battery capacity of the battery for the mobile station; and determining a standby time for the mobile station based on the current consumption and the available battery capacity, wherein the measuring of the current consumption is performed for a time period less than the standby time of the mobile station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system configured to determine standby time for a mobile station, the system comprising:
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a battery simulator configured for connection to the mobile station, the battery simulator configured to generate a variable simulated battery voltage to power the mobile station;
wherein the battery simulator is programmed to have an equivalent series resistance (ESR) equal to the ESR of the battery and wherein the ESR is used by the battery simulator to generate the simulated battery voltage; anda computer configured to measure current consumption of the mobile station in standby mode for a time period less than the standby time of the mobile station, determine an available battery capacity of a battery for the mobile station, and determine a standby time for the mobile station based on the current consumption and the available battery capacity. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A computer-readable memory configured with code to determine standby time for a mobile station, the code executable by a computer to cause the computer to:
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generate a variable simulated battery voltage to power the mobile station, measure current consumption of the mobile station in standby mode using the simulated battery voltage for a time period less than a standby time of the mobile station; determine an available battery capacity of a battery for the mobile station; and
determine a standby time for the mobile station based on the current consumption and the available battery capacity. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification