METHODS OF MAINTAINING CONNECTION WITH, AND DETERMINING THE DIRECTION OF, A MOBILE DEVICE

摘要

A method of determining the direction of a mobile communication device, the method comprising receiving an encoded locator signal from the device over a wireless link; decoding the locator signal to generate a decoded output; and measuring the direction of arrival of the locator signal by analyzing the decoded output. A method of maintaining a connection with a mobile communication device, the method comprising establishing a connection with the device; receiving a request from the device to release the connection; and repeatedly sending a request for information to the device to prevent the device from releasing the connection. A method of maintaining communication with a mobile cellular communication device, the method comprising establishing a connection with the device by broadcasting a first cell configured with a first location code to the device; and re-establishing the connection with the device after the device has released the connection by broadcasting a second cell configured with a second location code to the device.