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Multi-band satellite and/or ancillary terrestrial component radioterminal communications systems and methods with combining operation

  • US 7,933,552 B2
  • Filed: 02/18/2005
  • Issued: 04/26/2011
  • Est. Priority Date: 03/22/2004
  • Status: Active Grant
First Claim
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1. A satellite radioterminal communications system comprising:

  • a first space-based component that is configured to communicate with a first radioterminal over a first forward link using a first band of frequencies and over a first return link using a second band of frequencies;

    a second space-based component that is configured to communicate with a second radioterminal over a second forward link using a third band of frequencies and over a second return link using a fourth band of frequencies and to receive return link communications from the first radioterminal over the second band of frequencies; and

    a combiner that is configured to combine return link communications received from the first radioterminal at the first and second space-based components;

    wherein the first space-based component is configured to exclude communications using the third band of frequencies and wherein the second space-based component is configured to exclude communications using the first band of frequencies;

    wherein the first band of frequencies comprises a first one of an S frequency band or an L frequency band and excludes a second one of the S frequency band or the L frequency band, wherein the third band of frequencies comprises the second one of the S frequency band or the L frequency band and excludes the first one of the S frequency band or the L frequency band wherein the first space-based component is configured to exclude transmission using the third band of frequencies and wherein the second space-based component is configured to exclude transmission using the first band of frequencies.

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