초록 ▼

In one disclosed embodiment, communication between a mobile unit and a base station is performed at a data transfer rate selected from, for example, a finite set of HDR data transfer rates. Meanwhile, the mobile unit continually computes a moving average of the data transfer rates. The mobile unit a

In one disclosed embodiment, communication between a mobile unit and a base station is performed at a data transfer rate selected from, for example, a finite set of HDR data transfer rates. Meanwhile, the mobile unit continually computes a moving average of the data transfer rates. The mobile unit also ascertains a supportable data rate for receiving data. The supportable data rate can be selected from a finite set of HDR data transfer rates. In order to maintain the moving average of the data transfer rate within a specified range, the mobile unit transmits maximum data rate requests or null data requests to the base station. The maximum data rates requested by the mobile unit are equal to or lower than the supportable data rate.

대표청구항 ▼

In one disclosed embodiment, communication between a mobile unit and a base station is performed at a data transfer rate selected from, for example, a finite set of HDR data transfer rates. Meanwhile, the mobile unit continually computes a moving average of the data transfer rates. The mobile unit a

In one disclosed embodiment, communication between a mobile unit and a base station is performed at a data transfer rate selected from, for example, a finite set of HDR data transfer rates. Meanwhile, the mobile unit continually computes a moving average of the data transfer rates. The mobile unit also ascertains a supportable data rate for receiving data. The supportable data rate can be selected from a finite set of HDR data transfer rates. In order to maintain the moving average of the data transfer rate within a specified range, the mobile unit transmits maximum data rate requests or null data requests to the base station. The maximum data rates requested by the mobile unit are equal to or lower than the supportable data rate. te includes an antenna array, a method of providing customized information related to said user, comprising the steps of: a) receiving at said antenna array one or more RF signals originating from said mobile device; b) deriving at least one p-dimensional array vectors from said one or more RF signals sampled from p antennas of said array; c) using said at least one p-dimensional array vectors to derive a velocity of said mobile device; d) using said velocity to determine said customized information; and e) using said velocity to select a means to transmit said customized information to an information user. 16. The method of claim 15 wherein said information user is said user.17. The method of claim 15 wherein said information user is an external network.18. The method of claim 15 wherein said mobile device is a transmitter-receiver, and wherein said customized information is transmitted exclusively to said transmitter-receiver.19. The method of claim 15 wherein said customized information is transmitted exclusively to a remote receiver.20. The method of claim 19 wherein said remote receiver is connected to a public display unit, such that said customized information is displayed on said public display unit accessible to said mobile user.21. The method of claim 20 wherein said public display unit is selected from the group consisting of: an electronic billboard, a display screen at a service station, a kiosk equipped with wireless reception capability.22. The method of claim 15 wherein said customized information is transmitted to a broadcaster selected from the group consisting of: a television broadcaster and a radio broadcaster.23. The method of claim 15 wherein said customized information is transmitted to a data receptacle selected from the group consisting of: an internet web site, an electronic mail account, a pager, a mobile phone, a modem, and a fax machine.24. The method of claim 15 wherein said customized information includes commercial services, advertising information, traffic conditions, public safety and emergency announcements.25. A method of determining a traffic density using a base transceiver connected to an antenna array, said method comprising the steps of: a) receiving at said antenna array RF signals originating from a plurality of mobile devices, wherein said RF signals comprise p-dimensional array vectors sampled from p antennas of said array; and b) using the p-dimensional array vectors to determine locations of said mobile devices from measured subspaces to which said array vectors are approximately confined. 26. The method of claim 25 further comprising the step of comparing said locations of said mobile devices to positions of roadways, thereby determining traffic densities of a plurality of segments of said roadways.27. The method of claim 26 further comprising the steps of: a) determining a location of a remote transceiver; b) selecting a local roadway segment in a vicinity of said remote transceiver; and c) transmitting to said remote transceiver the traffic density of said local roadway segment. 28. The method of claim 26 further comprising the steps of: a) receiving a request containing a destination location from a remote transceiver; b) selecting a roadway segment in a vicinity of said destination location; and c) transmitting to said remote transceiver the traffic density of said roadway segment. 29. The method of claim 28 further comprising the step of updating the traffic density and transmitting the updated traffic density to said remote transceiver.30. The method of claim 25 wherein said locations are determined at a time t1; and wherein said method further comprises the steps of: a) determining later locations of said mobile devices at a later time t 2; and b) determining velocities of said mobile devices from said locations determined at time t 1and said later locations determined at time t2.31. The method of claim 30 further comprising the st