Patent ID: 8265588
Filing Date: 2012-09-11
Classification: H04B,H04M,H04W,Y02D

Abstract:
1. A wireless communication method, comprising: providing a multi-mode communication device including an unrestricted mode having an unrestricted operation temperature range and a restricted mode having a restricted operation temperature range; determining if a temperature in proximity to an energy storage device is in at least one of the restricted operation temperature range and the unrestricted operation temperature range; periodically entering the restricted mode when in the restricted operation temperature range and entering the unrestricted mode when in the unrestricted operation temperature range; and entering the unrestricted mode when a user attempts to make an emergency call, wherein the providing step includes a shut-down mode having a shut-down operation temperature range, the determining step includes determining if the temperature in proximity to the energy storage device is in the shut-down operation temperature range, and the periodically entering step includes periodically shutting down when in the shut down temperature range, and wherein when powering up the device, the device enters the unrestricted mode.