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  <xs:element id="gsat_SpaceComponentMember" abstract="true" name="SpaceComponentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gsat_ImpairmentOfPrepaidLicensesAndRoyalties" abstract="false" name="ImpairmentOfPrepaidLicensesAndRoyalties" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gsat_NumberOfGateways" abstract="false" name="NumberOfGateways" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="gsat_PrepaidSatelliteConstructionCosts" abstract="false" name="PrepaidSatelliteConstructionCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gsat_GlobalStarSystemMember" abstract="true" name="GlobalStarSystemMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gsat_DefinedBenefitPlanPlanAssetsPaymentForSettlementPensionPlanAssets" abstract="false" name="DefinedBenefitPlanPlanAssetsPaymentForSettlementPensionPlanAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gsat_AssetImpairmentChargesIncludingPrepaidLicensesAndRoyaltiesTableTextBlock" abstract="false" name="AssetImpairmentChargesIncludingPrepaidLicensesAndRoyaltiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="gsat_ProductOtherMember" abstract="true" name="ProductOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="gsat_FinanceLeaseLiabilityToBePaidAfterYearFour" abstract="false" name="FinanceLeaseLiabilityToBePaidAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="gsat_LongTermDebtPrincipalAmountAbstract" abstract="true" name="LongTermDebtPrincipalAmountAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
</xs:schema>
