Patent ID: 6721580
Filing Date: 2004-04-13
Classification: H04W,Y02D

Abstract:
An apparatus comprising:a wireless device operable to provide wireless communications, the wireless device operable to establish a first wireless link using a first available method for wireless communications and to establish a second wireless link using a second available method for wireless communications; an energy storage device operable to provide power for the wireless device and to report an energy level indicating remaining energy for the energy storage device; and a controller operable to: determine a first power requirement for communicating emergency information using the first available method; determine a second power requirement for communicating the emergency information using the second available method; determine an emergency threshold to provide sufficient energy to communicate the emergency information using the wireless device, wherein the emergency threshold is equal to or greater than a sum of the first power requirement and the second power requirement; monitor the energy level; and provide wireless services using the wireless device if the energy level exceeds the emergency threshold.