Ancillary terrestrial component services using multiple frequency bands

• US 8,060,082 B2
• Filed: 08/26/2007
• Issued: 11/15/2011
• Est. Priority Date: 11/14/2006
• Status: Active Grant

• Current Assignee: Globalstar Incorporated
• Original Assignee: Globalstar Incorporated
• Inventors: Gallagher, Vijaya, Navarra, Anthony, Monte, Paul A.
• Primary Examiner(s): Chang; Kent
• Assistant Examiner(s): HTUN, SAN A
• Application Number:
  US11/895,754
• Publication Number:
  US 20080113666A1
• Time in Patent Office: 1,542 Days
• Field of Search: 455/550.1, 455/552.1, 455/553.1, 455/12.1, 455/13.1, 455/13.2, 455 27-430, 455446-4521
• US Class Current: 455/427
• CPC Class Codes: H04B 7/18563 Arrangements for interconnecting multiple systems data switching networks H04L12/00

Abstract

A satellite radio telephone system employing at least two space-based components, each of which is configured to communicate with a plurality of radio telephones. Each space-based component employs its own frequency band and its own air interface and includes an ancillary terrestrial component that is configured to communicate terrestrially with a plurality of radio telephones over their frequency bands and air interfaces.

Claims

1. A satellite radio telephone system comprising:

a) at least two spaced-based components, each of which is configured to communicate with a plurality of radio telephones wherein each of the at least two spaced-based components employs its own frequency band and its own unique air interface; and

b) an ancillary terrestrial component that is configured to communicate terrestrially with the plurality of radio telephones over said own frequency band and said own unique air interface of each respective one of said at least two spaced-based components and an ancillary terrestrial component air interface different from said own unique air interface of each respective one of said at least two spaced-based components; and

wherein at least a portion of the own frequency bands of the at least two spaced-based components is associated with a first area of coverage of the ancillary terrestrial component; and

wherein the ancillary terrestrial component is further configured to reuse and/or share at least another portion of the own frequency bands of the at least two spaced-based component associated with one or more areas of coverage adjacent to the first area of coverage.

2. The radio telephone system as defined in claim 1 wherein the radio telephone communicating with a first space based component operates in a first frequency band and uses a first air interface, and the radio telephones communicating with a second spaced-based components uses a second frequency band and a second air interface.

3. The radio telephone system as defined in claim 1 wherein all of said plurality of radio telephones are equipped to operate over said own frequency bands and support said own unique air interfaces.

4. The radio telephone system as defined in claim 1 wherein the at least a portion of the own frequency bands of the one of the at least two spaced-based components associated with the first area of coverage to be utilized by a terrestrial system has overlapping coverage with a second area of coverage.

5. The radio telephone system as defined in claim 1 wherein the ancillary terrestrial component is associated with the first area of coverage and is configured to reuse and/or share a substantially central portion of the at least another portion of the own frequency bands of the at least two spaced-based components associated with one or more areas of coverage adjacent to the first area of coverage.

6. The radio telephone system as defined in claim 1 wherein frequencies associated with the first area of coverage of a first communication system are assigned, reused and/or shared in a second area of coverage associated with a second communication system.

7. The radio telephone system as defined in claim 1 wherein assignment reuse and/or reassignment of spaced-based component uplink and downlink channels is provided in a non-paired manner.

8. The radio telephone system as defined in claim 1 wherein the spaced-based and terrestrial components operate independently of each other while sharing at least a portion and optionally all of a common frequency band.

9. The radio telephone system as defined in claim 1 wherein the spaced-based and terrestrial components operate independently of each other while utilizing discrete frequency bands.