Communication system having frequency reuse in non-blocking manner

US6725013B1 · kind B1 · utility

Assignee

• HUGHES ELECTRONICS LIMITED · US

Inventors

• Donald C. D. Chang · Thousand Oaks, US
• Weizheng Wang · Rancho Palos Verdes, US
• Ying Feria · Manhattan Beach, US
• Ming U. Chang · Rancho Palos Verdes, US
• Harold A. Rosen · Santa Monica, US
• Wah L. Lim · Newport Beach, US

Key dates

• Filing date: Jun 15, 2000
• Grant date: Apr 20, 2004
• Expiry date: May 26, 2021

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B7/18508
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A communications system (10) and method of operating the communications system includes a high altitude communication device (12) that communicates with a plurality of user terminals and a gateway station (30). The gateway station (30) couples the users to terrestrial networks (32) and other users. The high altitude communication device (16) has a controller that generates a second beam having the first frequency to a service (26). The stratospheric platform (12) does not generate the second beam within a blocking area. User terminals within the service area outside the blocking area are configured to receive the first beam and the second beam.