System and method of determining standby time for mobile stations
AssigneeResearch In Motion Limited
InventorsXin Jin, Jennifer Mallalieu, Fiona Shearer
Life of this patent
Estimating the term…
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.
Claims21
A method of determining standby time for a mobile station, the method comprising the steps of:
- measuring average current while the mobile station is in standby mode;
- determining available battery capacity of a battery in the mobile station;
- and
- determining a standby time for the mobile station in dependence upon the available battery capacity and the average current consumption.
A system for determining standby time for a mobile station, the system comprising:
- a battery simulator;
- a base station emulator;
- and
- a computer including 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 current while the mobile station is in standby mode and a module for determining a standby time for the mobile station in dependence upon they available battery capacity and average current, where the predetermined time is less than the standby time.
Dependencies are inferred from the claim text.