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  <xsd:element id="gsat_PurchaseAgreementPercentOfFairMarketValue" name="PurchaseAgreementPercentOfFairMarketValue" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gsat_QualcommIncorporatedMember" name="QualcommIncorporatedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gsat_ReductionOfDerivativeLiabilityArisingFromSettlementOfDebt" name="ReductionOfDerivativeLiabilityArisingFromSettlementOfDebt" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gsat_RelatedPartyTransactionExpenses" name="RelatedPartyTransactionExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gsat_ScenarioFourMember" name="ScenarioFourMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gsat_ScenarioOneMember" name="ScenarioOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gsat_ScenarioThreeMember" name="ScenarioThreeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gsat_ScenarioTwoMember" name="ScenarioTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gsat_ScheduleOfDepreciationExpenseTableTextBlock" name="ScheduleOfDepreciationExpenseTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gsat_SecondGenerationSatelliteOnGroundSpareMember" name="SecondGenerationSatelliteOnGroundSpareMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gsat_SecondGenerationSatellitesMember" name="SecondGenerationSatellitesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gsat_SettlementOfEarnoutConsiderationAssociatedWithAcquisitionShares" name="SettlementOfEarnoutConsiderationAssociatedWithAcquisitionShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="gsat_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumAmountPerEmployee" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumAmountPerEmployee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gsat_SharebasedGoodsandNonemployeeServicesTransactionGainLossonChangeinAwardValuation" name="SharebasedGoodsandNonemployeeServicesTransactionGainLossonChangeinAwardValuation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="gsat_SharebasedGoodsandNonemployeeServicesTransactionSharesGrantedDiscountfromMarketPrice" name="SharebasedGoodsandNonemployeeServicesTransactionSharesGrantedDiscountfromMarketPrice" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="gsat_SharesToBeIssuedToExerciseCashPaymentOptionForEarnoutPayments" name="SharesToBeIssuedToExerciseCashPaymentOptionForEarnoutPayments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="gsat_SixMonthLondonInterbankOfferedRateMember" name="SixMonthLondonInterbankOfferedRateMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gsat_SpaceComponentMember" name="SpaceComponentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gsat_StockIssuanceSettlementPeriodUponConversionAndAutomaticConversion" name="StockIssuanceSettlementPeriodUponConversionAndAutomaticConversion" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="gsat_StockPurchaseAgreementTerm" name="StockPurchaseAgreementTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gsat_SupplementalConsolidatingFinancialInformationAbstract" name="SupplementalConsolidatingFinancialInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gsat_TerrapinMember" name="TerrapinMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gsat_ThalesAleniaSpaceMember" name="ThalesAleniaSpaceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gsat_ThermoCapitalPartnersLlcMember" name="ThermoCapitalPartnersLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="gsat_WarrantOrRightExpirationPeriod" name="WarrantOrRightExpirationPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="gsat_WarrantsExercisedAssociatedWithConversionOfNotesShares" name="WarrantsExercisedAssociatedWithConversionOfNotesShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="gsat_WarrantsIssuedWithEightPointZeroPercentNotesMember" name="WarrantsIssuedWithEightPointZeroPercentNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>


