Transcore Link Logistics Corporation

Skywave Mobile Communications Inc.

Sean Faulkner

Wayne McPherson

Phil Lafleur

Brian Armbruster

Tom Houtman

David J Roscoe

Zhenhong Cheng

Ron Territo

Cheng Zhenhong

In a satellite-based messaging system messages are exchanged between a ground station and mobile terminals over a wide geographic area covered by multiple satellite beams. Each beam contains one or more carrier frequencies. A message processing center is configured to provision a frame comprising a plurality of subframes to carry data over a forward link to the mobile terminals; hop between beams in the forward link and assign each subframe within a frame to a specific satellite beam; provision a transport medium in the form of virtual carriers each defined by one or more carrier frequency/beam hop combinations, wherein each virtual carrier is assigned a unique virtual carrier identifier; and notify the mobile terminals of carrier frequency/hop combinations for assigned virtual carrier identifiers.

Satellite-based messaging system

A method for improving long-term blockage recovery of a communications signal is disclosed. The method includes monitoring a blockage source using at least one application specific-sensor. Time spent in the blockage source is ascertained. Information obtained from the application-specific sensor may be combined with the ascertained time spent in the blockage source to predict a likely blockage recovery time interval.

Sensor-based augmentation of blockage recovery

Growing community of inventors

Kanata, Canada

Sean Faulkner