| 摘要 |
A system that enhances life of a battery (15) in cell phone devices (12) that work in conjunction with a cellular telephone network (14) has a Registration- Request Signal transmission management function (1 0) that operates in the device (12) and periodically detects change in physical location (46) of the device from an immediate prior location, called an LchangeDelta (53). The function, if the LchangeDelta (53) is below a threshold of change in location (75), suppresses a Registration-Request Signal transmission from the device (12) to the cellular network (14), thus enhancing battery life. |
