Kenneth J Doerr

US Patent:

6888806, May 3, 2005

Filed:

Nov 22, 2000

Appl. No.:

09/721238

Inventors:

Karl E. Miller - Chandler AZ, US
George A. Mendez - Chandler AZ, US
Aaron C. Vandegriff - Chandler AZ, US
Kenneth J. Doerr - Phoenix AZ, US

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04B007/185

US Classification:

370316, 370338, 370349, 370389, 370391

Abstract:

A system () schedules candidate packets () for transmission from a communication platform (), the communication platform () being allocated a plurality of transmission resources (). The system () includes a processing element () for receiving the packets () and establishing a transmission priority () for each of the packets () according to a desired quality of service. The packets () are stored in a candidate packet buffer () as candidate packets () in accordance with the established transmission priority (). The system () further includes an interference resolver () that executes an interference resolution process () to concurrently consider transmission resource availability, spatial separation, and temporal separation variables when scheduling the candidate packets () for transmission from the communication platform ().

US Patent:

6535734, Mar 18, 2003

Filed:

Apr 4, 2000

Appl. No.:

09/542608

Inventors:

Karl Eric Miller - Chandler AZ
Price Andrew DAntonio - Phoenix AZ
Curtis Alan Provance - Gilbert AZ
Kenneth Joseph Doerr - Phoenix AZ
Steven Brian Leeland - Scottsdale AZ

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04Q 720

US Classification:

455429, 455 121, 342354

Abstract:

A method and apparatus for steering beams modulated from a mobile platform in a manner that reduces overall platform payload processing, and therefore payload weight and power requirements. According to the present invention, a beam steering data calculator ( ) generates a table of beam steering data sets ( ), with each data set corresponding to a specific beam-pointing angle mapped to a corresponding cell on the surface of the earth. A data set that corresponds to a received downlink cell address ( ) is read out from the table and mapped to the downlink address, and an output angle of a modulated vehicle beam ( ) that transmits a data packet to the cell address is corrected to correspond to the beam-pointing angle of the read-out data set. The generated table of beam steering data sets ( ) is then re-used for an application-specific quantization time for mapping subsequently-received downlink addresses with beam steering data sets, thereby obviating the need to provide real-time updates of data sets on a packet transmit interval basis. In addition, the present invention is capable of compensating for numerous other causes of beam-pointing error, thereby improving overall beam-pointing accuracy.