MICHAEL J ANDRESEN
Pilots at 12 Ave, Apache Junction, AZ

5926767, Jul 20, 1999

Dec 26, 1996

8/773294

Keith Andrew Olds - Mesa AZ
Michael J. Andresen - Apache Junction AZ

Motorola, Inc. - Schaumburg IL

H04B 100, H04B 1700

455504

In a dynamic communication system (90) wherein communication parameters vary between transmissions, subscriber units (200) are susceptible to intermittent link blockages. These blockages can result in a loss of successive feedback, instructing subscriber units (200) of adjustments to link parameters to be employed in a subsequent transmission on a communication link (105). Dynamic link parameters are predicted (240) continuously throughout intermittent link fades and these predictions are employed during link blockages in an attempt to re-establish communications. In addition, the subsequent resynchronization process resynchronizes the link parameter predicting model (240) based on how long the signal was interrupted.

5761608, Jun 2, 1998

Apr 1, 1996

8/617723

Michael J. Andresen - Apache Junction AZ
Keith Andrew Olds - Mesa AZ
Christopher Neil Kurby - Elmhurst IL
Bradley B. Bakke - Lake in The Hills IL

Motorola, Inc. - Schaumburg IL

H04B 7185

455 131

A method for a radio frequency communication unit (110) (CU) to hand off from a losing node (120) to a gaining node (122) estimates a gaining node uplink time (210) and a gaining node uplink frequency (212), which the gaining node uplink signal comprises. During handoff, the CU (110) ceases communications with the losing node (120) and immediately begins communications with the gaining node (122) using the uplink time and uplink frequency. A CU apparatus (300) uses a processor (302) for carrying out calculations necessary for estimating the gaining node uplink time and frequency. Information necessary for the calculations, such as a downlink signal time-of-arrival and Doppler offset, are collected by a CU receiver (306). The CU receiver (306) and a CU transmitter (304) are used to support downlink signals (142) and uplink signals (140), respectively, between the CU (110) and a node (120, 122).

6073020, Jun 6, 2000

Mar 20, 1998

9/045576

Michael J. Andresen - Apache Junction AZ

Motorola, Inc. - Schaumburg IL

H04Q 720

455436

A method for a radio frequency communication unit (110) (CU) to hand off from a losing node (120) to an alternate node (122) estimates one or more alternate node uplink times (240) and alternate node uplink frequencies (242), which the alternate node uplink signal comprises. During handoff, the CU (110) ceases communications with the losing node (120) and immediately begins communications with the alternate node (122) using the uplink time and uplink frequency. A CU apparatus (300) uses a processor (302) for carrying out calculations necessary for estimating the alternate node uplink time and frequency. Information necessary for the calculations, such as a downlink signal time-of-arrival and Doppler offset, are collected by a CU receiver (306). The CU receiver (306) and a CU transmitter (304) are used to support downlink signals (142) and uplink signals (140), respectively, between the CU (110) and a node (120, 122).

5794155, Aug 11, 1998

Jul 3, 1995

8/498257

Michael J. Andresen - Apache Junction AZ
Keith Andrew Olds - Mesa AZ

Motorola, Inc. - Schaumburg IL

H04Q 720

455517

In a dynamic communication system (90) wherein communication parameters vary appreciably between transmissions, subscriber units (200) are susceptible to link blockages resulting in a loss of successive feedback instructing subscriber units (200) of adjustments to communication parameters to be employed in a subsequent transmission on a communication link (105). A method and system are employed to predict subsequent communication parameters and employ these predictions during link blockages in an attempt to reestablish communications and upon the removal of a link blockage, a subscriber unit (200) employs the predicted communication parameters in resuming communications without requiring complex reallocation of an additional communication link.

6052558, Apr 18, 2000

Apr 28, 1997

8/842102

Dean Lawrence Cook - Mesa AZ
Michael J. Andresen - Apache Junction AZ
David Warren Corman - Gilbert AZ

Motorola, Inc. - Schaumburg IL

H04B 100

455 121

Cellular communication systems (20) use repeaters (50) to communicate with subscriber units (24) otherwise shadowed from base stations (22). A networked repeater (50) is provided for use in a cellular communication system with low-earth orbit satellites (22) and mobile subscriber units (24). Networked repeater (50) includes a base transceiver module (54) for communicating with the base stations (22) and a plurality of subscriber transceiver modules (56), each of which communicates with subscriber units (24). The base transceiver module (54) is located so as to be unshadowed, i. e. able to have unimpeded communication with at least one of the satellites (22). The subscriber transceiver module (56) is located so as to provide unshadowed communication with the subscriber units (24) that would otherwise be shadowed, i. e. unable to have unimpeded communication with any of the satellites (22).