Approaches for achieving improved capacity plans for a satellite communications system via interleaved beams from multiple satellites

• US 10,447,385 B2
• Filed: 03/06/2017
• Issued: 10/15/2019
• Est. Priority Date: 03/04/2016
• Status: Active Grant

• Current Assignee: Hughes Network Systems LLC (Echostar Corporation)
• Original Assignee: Hughes Network Systems LLC (Echostar Corporation)
• Inventors: Morris, Adrian, Roos, Dave, Kay, Stan
• Primary Examiner(s): Shiue, Dong-Chang
• Application Number:
  US15/451,307
• Publication Number:
  US 20180219614A1
• Time in Patent Office: 953 Days
• CPC Class Codes: H03M 13/6552 DVB-T2
• CPC Class Codes: H04B 7/12 Frequency diversity
• CPC Class Codes: H04B 7/1851 Systems using a satellite or space-based relay H04B7/18508, H04B7/18521 take precedence; providing specific services H04B7/18523 - H04B7/18576
• CPC Class Codes: H04B 7/18515 Transmission equipment in satellites or space-based relays
• CPC Class Codes: H04B 7/2041 Spot beam multiple access
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04W 40/20 based on geographic position or location

Abstract

A method is provided for interleaving frequency reuse plans of multiple satellites to form an aggregate frequency reuse cell plan. A first plurality of spot beams is generated by a first satellite for a first frequency reuse plan based on radio frequency (RF) spectrum bands. A second plurality of spot beams is generated by a second satellite for a second frequency reuse plan based on the RF spectrum bands. The first and second plurality of spot beams are interleaved to generate an aggregate frequency reuse cell plan. According to the aggregate frequency reuse plan, each of a first plurality of cells is covered by a combination of at least two of the plurality of spot beams of the first satellite, and each of a first plurality of cells is covered by a combination of at least two of the plurality of spot beams of the second satellite.

Claims

1. A method comprising:

generating, by a first satellite, a first plurality of spot beams for a first frequency reuse plan based on a plurality of radio frequency (RF) spectrum bands;

generating, by a second satellite, a second plurality of spot beams for a second frequency reuse plan based on the plurality of RF spectrum bands; and

interleaving the first plurality of spot beams and the second plurality of spot beams to generate an aggregate frequency reuse cell plan; and

wherein, according to the aggregate frequency reuse plan, (i) an entire geographic area of each of a first plurality of cells is covered by a combination of at least two of the plurality of spot beams of the first satellite, (ii) an entire geographic area of each of a second plurality of cells is covered by a combination of at least two of the plurality of spot beams of the second satellite, and (iii) an entire geographic area of each of a third plurality of cells is covered by a combination of at least one of the plurality of spot beams of the first satellite and at least one of the plurality of spot beams of the second satellite.

2. The method of claim 1, wherein, according to the aggregate frequency reuse cell plan, the entire geographic area of each of the third plurality of cells is covered by a combination of at least two of the plurality of spot beams of the first satellite and at least two of the plurality of spot beams of the second satellite.

3. The method of claim 1, wherein, according to the aggregate frequency reuse cell plan, the entire geographic area of each of the third plurality of cells is covered by a combination of at least a first two of the plurality of spot beams of the first satellite and at least a first two of the plurality of spot beams of the second satellite, and an entire geographic area of each of a fourth plurality of cells is covered by a combination of at least a second two of the plurality of spot beams of the first satellite and at least a second two of the plurality of spot beams of the second satellite.

4. A system comprising:

a first satellite, including at least one antenna configured to generate a first plurality of spot beams that form a first frequency reuse plan based on a plurality of radio frequency (RF) spectrum bands;

a second satellite, including at least one antenna configured to generate a second plurality of spot beams that form a second frequency reuse plan based on the plurality of RF spectrum bands; and

wherein the at least one antenna of the first satellite and the at least one antenna of the second satellite are further configured to generate the first plurality of spot beams and the second plurality of spot beams, respectively, in an interleaved manner to generate an aggregate frequency reuse cell plan; and

wherein, according to the aggregate frequency reuse cell plan, (i) an entire geographic area of each of a first plurality of cells is covered by a combination of at least two of the plurality of spot beams of the first satellite, (ii) an entire geographic area of each of a second plurality of cells is covered by a combination of at least two of the plurality of spot beams of the second satellite, and (iii) an entire geographic area of each of a third plurality of cells is covered by a combination of at least one of the plurality of spot beams of the first satellite and at least one of the plurality of spot beams of the second satellite.

5. The system of claim 4, wherein, according to the aggregate frequency reuse cell plan, the entire geographic area of each of the third plurality of cells is covered by a combination of at least two of the plurality of spot beams of the first satellite and at least two of the plurality of spot beams of the second satellite.

6. The method of claim 4, wherein, according to the aggregate frequency reuse cell plan, the entire geographic area of each of the third plurality of cells is covered by a combination of at least a first two of the plurality of spot beams of the first satellite and at least a first two of the plurality of spot beams of the second satellite, and an entire geographic area of each of a fourth plurality of cells is covered by a combination of at least a second two of the plurality of spot beams of the first satellite and at least a second two of the plurality of spot beams of the second satellite.