Methods and apparatus for controlling the transmission and/or reception of safety messages by portable wireless user devices

摘要

Safety message monitoring operations and/or safety message transmission operations are controlled for a mobile wireless communications device. The periodicity with regard to safety message monitoring and/or safety message transmissions is varied based on the environment of the mobile wireless device. The transmission power level with regard to safety message transmissions is varied based on the environment of the mobile wireless device. In some embodiments, safety message monitoring and transmission operations are disabled when the mobile device is determined to be inside a building or inside a vehicle. In some embodiments, safety message monitoring rate and safety message transmission rate is varied as a function of proximity to vehicular traffic and/or the level of detected vehicular traffic. In some embodiments, safety message transmission power level is varied as a function of proximity to vehicular traffic and/or the level of detected vehicular traffic.

主权项

1. A method of wireless communication of a wireless communication device comprising:
generating inertial guidance information from an inertial guidance module; determining a status of the wireless communication device based on the inertial guidance information; and controlling a power consumption of a dedicated short range communication (DSRC) module based on the status of the wireless communication device, the power consumption being decreased by powering off the DSRC module when the status indicates that the wireless communication device is stationary.