POLLING BETWEEN WIRELESS DEVICE AND VEHICLE TRANSCEIVERS

摘要

Polling methods and systems are described to allow a wireless device to establish communication with a base, e.g., a vehicle, in an efficient manner. The polling signal includes a plurality of time separated, polling transmission signals and a single receive time period. The polling transmission signals are separated by a non-transmission time period that is greater than a transmission time of the time separated transmission signals. The polling scheme can be repeated the polling signal until a poll response signal from the base is received. Energy savings for the wireless device are provided by limiting the number of receive actions and time periods in the wireless device.

主权项

1. A wireless, polling device for communicating with a vehicle comprising:
a controller to produce a polling signal with a transmission period, a receive period and a sleep period with the sleep period being longer than the transmission period and receive period combined and the transmission period and sleep period together being longer than a receive period of a vehicle; and a transceiver connected to the controller and configured to transmit the polling signal from the device or to receive a vehicle signal at the device.