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  <xsd:element id="hssc_FinanceLeaseRightOfUseAssetNumberOfUnits" abstract="false" name="FinanceLeaseRightOfUseAssetNumberOfUnits" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType" />
  <xsd:element id="hssc_QuarterToQuarterMember" abstract="true" name="QuarterToQuarterMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" />
  <xsd:element id="hssc_IncreaseDecreaseInContractLiabilities" abstract="false" name="IncreaseDecreaseInContractLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element id="hssc_NumberOfSatelliteLeasesFinanceLeases" abstract="false" name="NumberOfSatelliteLeasesFinanceLeases" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType" />
  <xsd:element id="hssc_RelatedPartyTransactionsRequiredMinimumNoticePeriodForTerminationOfAgreement" abstract="false" name="RelatedPartyTransactionsRequiredMinimumNoticePeriodForTerminationOfAgreement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType" />
  <xsd:element id="hssc_TotalNonoperatingIncomeExpenseInterestAndDebtExpenseAndIncomeLossFromEquityMethodInvestments" abstract="false" name="TotalNonoperatingIncomeExpenseInterestAndDebtExpenseAndIncomeLossFromEquityMethodInvestments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element id="hssc_DBSDNorthAmericaAgreementMember" abstract="true" name="DBSDNorthAmericaAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" />
  <xsd:element id="hssc_ServicesDesignDevelopmentAndConstructionMember" abstract="true" name="ServicesDesignDevelopmentAndConstructionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" />
  <xsd:element id="hssc_SatelliteLeaseTerm" abstract="false" name="SatelliteLeaseTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType" />
  <xsd:element id="hssc_RelatedPartyTransactionsRequiredMinimumNoticePeriodForTerminationOfSpecificService" abstract="false" name="RelatedPartyTransactionsRequiredMinimumNoticePeriodForTerminationOfSpecificService" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType" />
  <xsd:element id="hssc_SeniorUnsecuredNotes6.625PercentDue2026Member" abstract="true" name="SeniorUnsecuredNotes6.625PercentDue2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" />
  <xsd:element id="hssc_LesseeWeightedAverageDiscountRateAbstract" abstract="true" name="LesseeWeightedAverageDiscountRateAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType" />
  <xsd:element id="hssc_AllOtherGeographicSegmentsMember" abstract="true" name="AllOtherGeographicSegmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" />
  <xsd:element id="hssc_LeaseLiabilityNoncurrent" abstract="false" name="LeaseLiabilityNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" />
  <xsd:element id="hssc_HughesBroadbandDistributionAgreementMember" abstract="true" name="HughesBroadbandDistributionAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" />
  <xsd:element name="EchostarXxivMember" id="hssc_EchostarXxivMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RelatedPartyTransactionsAgreementRenewalNoticeRequiredByReportingEntity" id="hssc_RelatedPartyTransactionsAgreementRenewalNoticeRequiredByReportingEntity" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CollocationAndAntennaSpaceAgreementsMember" id="hssc_CollocationAndAntennaSpaceAgreementsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AmendedAndRestatedProfessionalServicesAgreementMember" id="hssc_AmendedAndRestatedProfessionalServicesAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SatellitesInGeosynchronousOrbitLengthAboveEquator" id="hssc_SatellitesInGeosynchronousOrbitLengthAboveEquator" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IncreaseDecreaseChangesInAllowanceForCreditLosses" id="hssc_IncreaseDecreaseChangesInAllowanceForCreditLosses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OperatingLeasesCost" id="hssc_OperatingLeasesCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AccountsReceivableAndContractWithCustomerAssetsNetCurrent" id="hssc_AccountsReceivableAndContractWithCustomerAssetsNetCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AccountsReceivableAndContractWithCustomerAssetsAllowanceForCreditLossCurrent" id="hssc_AccountsReceivableAndContractWithCustomerAssetsAllowanceForCreditLossCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ScheduleOfTransactionsWithEquityMethodInvesteeTableTextBlock" id="hssc_ScheduleOfTransactionsWithEquityMethodInvesteeTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SoftwareDevelopmentServicesPurchases" id="hssc_SoftwareDevelopmentServicesPurchases" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="MarketableInvestmentSecuritiesRestrictedCashAndCashEquivalentsAndOtherInvestmentsAbstract" id="hssc_MarketableInvestmentSecuritiesRestrictedCashAndCashEquivalentsAndOtherInvestmentsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LeaseDisclosureTextBlock" id="hssc_LeaseDisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="LessorSalesTypeAndOperatingLeaseLeaseIncomeTableTextBlock" id="hssc_LessorSalesTypeAndOperatingLeaseLeaseIncomeTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AccountsReceivableAndContractWithCustomerAssetsCreditLossExpenseReversal" id="hssc_AccountsReceivableAndContractWithCustomerAssetsCreditLossExpenseReversal" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AccountsReceivableAndContractWithCustomerAssetsAllowanceForCreditLossWriteoff" id="hssc_AccountsReceivableAndContractWithCustomerAssetsAllowanceForCreditLossWriteoff" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AccountsReceivableAndContractWithCustomerAssetsAllowanceForCreditLossForeignCurrencyTranslation" id="hssc_AccountsReceivableAndContractWithCustomerAssetsAllowanceForCreditLossForeignCurrencyTranslation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ConnectivityServices" id="hssc_ConnectivityServices" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="OtherCostOfServices" id="hssc_OtherCostOfServices" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="OperatingIncomeLossBeforeDepreciationAndAmortization" id="hssc_OperatingIncomeLossBeforeDepreciationAndAmortization" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OtherNotesPayableMember" id="hssc_OtherNotesPayableMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EchoStarCorporationMember" id="hssc_EchoStarCorporationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ContractualObligationsTypeAxis" id="hssc_ContractualObligationsTypeAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ContractualObligationsTypeDomain" id="hssc_ContractualObligationsTypeDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfBroadbandSubscribers" id="hssc_NumberOfBroadbandSubscribers" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="MarketableAndNonMarketableInvestmentSecuritiesRealizedAndUnrealizedGainsLossExcludingOtti" id="hssc_MarketableAndNonMarketableInvestmentSecuritiesRealizedAndUnrealizedGainsLossExcludingOtti" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CashAndRestrictedCashMember" id="hssc_CashAndRestrictedCashMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CashEquivalentsAndRestrictedCashEquivalentsMember" id="hssc_CashEquivalentsAndRestrictedCashEquivalentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RevenueFromContractWithCustomerCustomerAcquisitionsPolicyTextBlock" id="hssc_RevenueFromContractWithCustomerCustomerAcquisitionsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SatelliteHostingOperationsAndMaintenanceExpense" id="hssc_SatelliteHostingOperationsAndMaintenanceExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="RelatedPartyTransactionsAgreementNumberOfRenewalOption" id="hssc_RelatedPartyTransactionsAgreementNumberOfRenewalOption" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CostOfSalesAmortizedToExpense" id="hssc_CostOfSalesAmortizedToExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" id="hssc_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="SharedCorporateServicesAgreementMember" id="hssc_SharedCorporateServicesAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DisposalOfSpectrumLicensesPurchaseConsideration" id="hssc_DisposalOfSpectrumLicensesPurchaseConsideration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="SpectrumLicenses50MhzMember" id="hssc_SpectrumLicenses50MhzMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SpacexLicensePurchaseAgreementMember" id="hssc_SpacexLicensePurchaseAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SpacexSpectrumAndBusinessTrustMember" id="hssc_SpacexSpectrumAndBusinessTrustMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SeniorSecuredNotes10.75PercentDue2029Member" id="hssc_SeniorSecuredNotes10.75PercentDue2029Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SeniorSecuredNotes6.75PercentDue2030Member" id="hssc_SeniorSecuredNotes6.75PercentDue2030Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ConvertibleSecuredNotes3.875PercentDue2030Member" id="hssc_ConvertibleSecuredNotes3.875PercentDue2030Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DisposalOfSpectrumLicensesPurchaseConsiderationSharesIssuedValue" id="hssc_DisposalOfSpectrumLicensesPurchaseConsiderationSharesIssuedValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DisposalOfSpectrumLicensesThresholdPurchaseConsiderationBeyondWhichAmountReceivableInCash" id="hssc_DisposalOfSpectrumLicensesThresholdPurchaseConsiderationBeyondWhichAmountReceivableInCash" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ConvertibleSecuredNotes10.75PercentDue20296.75PercentDue20303.875PercentDue2030Member" id="hssc_ConvertibleSecuredNotes10.75PercentDue20296.75PercentDue20303.875PercentDue2030Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScheduleOfDepreciationAndAmortizationExpenseTableTextBlock" id="hssc_ScheduleOfDepreciationAndAmortizationExpenseTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DisposalOfSpectrumLicensesPurchaseConsiderationFundedByCommonStock" id="hssc_DisposalOfSpectrumLicensesPurchaseConsiderationFundedByCommonStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AdditionalConsiderationFromSaleOfAssetsToBeIssuedInEquity" id="hssc_AdditionalConsiderationFromSaleOfAssetsToBeIssuedInEquity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ConsiderationFromSaleOfAssetsToBeIssuedInEquity" id="hssc_ConsiderationFromSaleOfAssetsToBeIssuedInEquity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="SecuredAndUnsecuredLoanAgreementsMember" id="hssc_SecuredAndUnsecuredLoanAgreementsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BusinessExitCostsPayable" id="hssc_BusinessExitCostsPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="NewSpaceIndiaLimitedMember" id="hssc_NewSpaceIndiaLimitedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LitigationSettlementAmountAwardedToOtherPartyMaximumPaymentPeriod" id="hssc_LitigationSettlementAmountAwardedToOtherPartyMaximumPaymentPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="LitigationSettlementCourtOrderedObligationPercent" id="hssc_LitigationSettlementCourtOrderedObligationPercent" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="Hssc2026IntercompanyLoanMember" id="hssc_Hssc2026IntercompanyLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="Hssc2026IntercompanyLoanSecuredFinancingAgreementMember" id="hssc_Hssc2026IntercompanyLoanSecuredFinancingAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="Hssc2026IntercompanyLoanUnsecuredFinancingAgreementMember" id="hssc_Hssc2026IntercompanyLoanUnsecuredFinancingAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RestrictedCashAndCashEquivalentsAndOtherInvestments" id="hssc_RestrictedCashAndCashEquivalentsAndOtherInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="August2026NotesMember" id="hssc_August2026NotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
</xsd:schema>
