<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<xsd:schema attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.echostar.com/20151231/20161231" xmlns:hssc="http://www.echostar.com/20151231/20161231" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <xsd:import namespace="http://fasb.org/us-gaap/2016-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-roles/2016-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2016/elts/us-roles-2016-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-types/2016-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2016/elts/us-types-2016-01-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/country/2016-01-31" schemaLocation="http://xbrl.sec.gov/country/2016/country-2016-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/currency/2016-01-31" schemaLocation="http://xbrl.sec.gov/currency/2016/currency-2016-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/dei/2014-01-31" schemaLocation="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/exch/2016-01-31" schemaLocation="http://xbrl.sec.gov/exch/2016/exch-2016-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/invest/2013-01-31" schemaLocation="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/naics/2011-01-31" schemaLocation="http://xbrl.sec.gov/naics/2011/naics-2011-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/sic/2011-01-31" schemaLocation="http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/stpr/2011-01-31" schemaLocation="http://xbrl.sec.gov/stpr/2011/stpr-2011-01-31.xsd" />
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="hssc-20161231_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="hssc-20161231_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="hssc-20161231_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="hssc-20161231_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple" />
      <link:roleType id="CommitmentsAndContingencies" roleURI="http://www.echostar.com/role/CommitmentsAndContingencies">
        <link:definition>2113100 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingenciesSatelliteLeasesAndRentExpenseDetails" roleURI="http://www.echostar.com/role/CommitmentsAndContingenciesSatelliteLeasesAndRentExpenseDetails">
        <link:definition>2413403 - Disclosure - Commitments and Contingencies - Satellite Leases and Rent Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingenciesScheduleOfCommitmentsDetails" roleURI="http://www.echostar.com/role/CommitmentsAndContingenciesScheduleOfCommitmentsDetails">
        <link:definition>2413402 - Disclosure - Commitments and Contingencies - Schedule of Commitments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingenciesTables" roleURI="http://www.echostar.com/role/CommitmentsAndContingenciesTables">
        <link:definition>2313301 - Disclosure - Commitments and Contingencies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheets" roleURI="http://www.echostar.com/role/ConsolidatedBalanceSheets">
        <link:definition>1001000 - Statement - CONSOLIDATED BALANCE SHEETS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedBalanceSheetsParenthetical" roleURI="http://www.echostar.com/role/ConsolidatedBalanceSheetsParenthetical">
        <link:definition>1001501 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfCashFlows" roleURI="http://www.echostar.com/role/ConsolidatedStatementsOfCashFlows">
        <link:definition>1004000 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfCashFlowsParenthetical" roleURI="http://www.echostar.com/role/ConsolidatedStatementsOfCashFlowsParenthetical">
        <link:definition>1004501 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfChangesInShareholdersEquity" roleURI="http://www.echostar.com/role/ConsolidatedStatementsOfChangesInShareholdersEquity">
        <link:definition>1003000 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ConsolidatedStatementsOfOperationsAndComprehensiveIncomeLoss" roleURI="http://www.echostar.com/role/ConsolidatedStatementsOfOperationsAndComprehensiveIncomeLoss">
        <link:definition>1002000 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtAndCapitalLeaseObligations" roleURI="http://www.echostar.com/role/DebtAndCapitalLeaseObligations">
        <link:definition>2110100 - Disclosure - Debt and Capital Lease Obligations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtAndCapitalLeaseObligationsCapitalLeaseFutureMinimumPaymentsDetails" roleURI="http://www.echostar.com/role/DebtAndCapitalLeaseObligationsCapitalLeaseFutureMinimumPaymentsDetails">
        <link:definition>2410404 - Disclosure - Debt and Capital Lease Obligations - Capital Lease Future Minimum Payments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtAndCapitalLeaseObligationsCapitalLeaseFutureMinimumPaymentsDetailsCalc2" roleURI="http://www.echostar.com/role/DebtAndCapitalLeaseObligationsCapitalLeaseFutureMinimumPaymentsDetailsCalc2">
        <link:definition>2410404 - Disclosure - Debt and Capital Lease Obligations - Capital Lease Future Minimum Payments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtAndCapitalLeaseObligationsDebtDetails" roleURI="http://www.echostar.com/role/DebtAndCapitalLeaseObligationsDebtDetails">
        <link:definition>2410403 - Disclosure - Debt and Capital Lease Obligations - Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtAndCapitalLeaseObligationsScheduleOfDebtAndCapitalLeasesDetails" roleURI="http://www.echostar.com/role/DebtAndCapitalLeaseObligationsScheduleOfDebtAndCapitalLeasesDetails">
        <link:definition>2410402 - Disclosure - Debt and Capital Lease Obligations - Schedule of Debt and Capital Leases (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtAndCapitalLeaseObligationsScheduleOfDebtAndCapitalLeasesDetailsCalc2" roleURI="http://www.echostar.com/role/DebtAndCapitalLeaseObligationsScheduleOfDebtAndCapitalLeasesDetailsCalc2">
        <link:definition>2410402 - Disclosure - Debt and Capital Lease Obligations - Schedule of Debt and Capital Leases (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtAndCapitalLeaseObligationsTables" roleURI="http://www.echostar.com/role/DebtAndCapitalLeaseObligationsTables">
        <link:definition>2310301 - Disclosure - Debt and Capital Lease Obligations (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DocumentAndEntityInformation" roleURI="http://www.echostar.com/role/DocumentAndEntityInformation">
        <link:definition>0001000 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeBenefitPlans" roleURI="http://www.echostar.com/role/EmployeeBenefitPlans">
        <link:definition>2112100 - Disclosure - Employee Benefit Plans</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeBenefitPlans401KEmployeeSavingsPlansDetails" roleURI="http://www.echostar.com/role/EmployeeBenefitPlans401KEmployeeSavingsPlansDetails">
        <link:definition>2412402 - Disclosure - Employee Benefit Plans - 401(k) Employee Savings Plans (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeBenefitPlansEmployeeStockPurchasePlanDetails" roleURI="http://www.echostar.com/role/EmployeeBenefitPlansEmployeeStockPurchasePlanDetails">
        <link:definition>2412401 - Disclosure - Employee Benefit Plans - Employee Stock Purchase Plan (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillRegulatoryAuthorizationsAndOtherIntangibleAssets" roleURI="http://www.echostar.com/role/GoodwillRegulatoryAuthorizationsAndOtherIntangibleAssets">
        <link:definition>2109100 - Disclosure - Goodwill, Regulatory Authorizations and Other Intangible Assets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillRegulatoryAuthorizationsAndOtherIntangibleAssetsFutureAmortizationOfIntangibleAssetsDetails" roleURI="http://www.echostar.com/role/GoodwillRegulatoryAuthorizationsAndOtherIntangibleAssetsFutureAmortizationOfIntangibleAssetsDetails">
        <link:definition>2409404 - Disclosure - Goodwill, Regulatory Authorizations, and Other Intangible Assets - Future Amortization of Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillRegulatoryAuthorizationsAndOtherIntangibleAssetsRegulatoryAuthorizationsDetails" roleURI="http://www.echostar.com/role/GoodwillRegulatoryAuthorizationsAndOtherIntangibleAssetsRegulatoryAuthorizationsDetails">
        <link:definition>2409402 - Disclosure - Goodwill, Regulatory Authorizations, and Other Intangible Assets - Regulatory Authorizations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillRegulatoryAuthorizationsAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails" roleURI="http://www.echostar.com/role/GoodwillRegulatoryAuthorizationsAndOtherIntangibleAssetsScheduleOfIntangibleAssetsDetails">
        <link:definition>2409403 - Disclosure - Goodwill, Regulatory Authorizations, and Other Intangible Assets - Schedule of Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="GoodwillRegulatoryAuthorizationsAndOtherIntangibleAssetsTables" roleURI="http://www.echostar.com/role/GoodwillRegulatoryAuthorizationsAndOtherIntangibleAssetsTables">
        <link:definition>2309301 - Disclosure - Goodwill, Regulatory Authorizations, and Other Intangible Assets (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="HughesRetailPreferredTrackingStock" roleURI="http://www.echostar.com/role/HughesRetailPreferredTrackingStock">
        <link:definition>2103100 - Disclosure - Hughes Retail Preferred Tracking Stock</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="HughesRetailPreferredTrackingStockAgreementDetails" roleURI="http://www.echostar.com/role/HughesRetailPreferredTrackingStockAgreementDetails">
        <link:definition>2403402 - Disclosure - Hughes Retail Preferred Tracking Stock - Agreement (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="HughesRetailPreferredTrackingStockChangesInShareholdersEquityDetails" roleURI="http://www.echostar.com/role/HughesRetailPreferredTrackingStockChangesInShareholdersEquityDetails">
        <link:definition>2403404 - Disclosure - Hughes Retail Preferred Tracking Stock - Changes in Shareholders' Equity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="HughesRetailPreferredTrackingStockNetAssetsTransferredDetails" roleURI="http://www.echostar.com/role/HughesRetailPreferredTrackingStockNetAssetsTransferredDetails">
        <link:definition>2403403 - Disclosure - Hughes Retail Preferred Tracking Stock - Net Assets Transferred (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="HughesRetailPreferredTrackingStockTables" roleURI="http://www.echostar.com/role/HughesRetailPreferredTrackingStockTables">
        <link:definition>2303301 - Disclosure - Hughes Retail Preferred Tracking Stock (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxes" roleURI="http://www.echostar.com/role/IncomeTaxes">
        <link:definition>2111100 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesDetails" roleURI="http://www.echostar.com/role/IncomeTaxesDetails">
        <link:definition>2411402 - Disclosure - Income Taxes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesTables" roleURI="http://www.echostar.com/role/IncomeTaxesTables">
        <link:definition>2311301 - Disclosure - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Inventory" roleURI="http://www.echostar.com/role/Inventory">
        <link:definition>2107100 - Disclosure - Inventory</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InventoryDetails" roleURI="http://www.echostar.com/role/InventoryDetails">
        <link:definition>2407402 - Disclosure - Inventory (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InventoryTables" roleURI="http://www.echostar.com/role/InventoryTables">
        <link:definition>2307301 - Disclosure - Inventory (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentSecurities" roleURI="http://www.echostar.com/role/InvestmentSecurities">
        <link:definition>2105100 - Disclosure - Investment Securities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentSecuritiesContractualMaturitiesDetails" roleURI="http://www.echostar.com/role/InvestmentSecuritiesContractualMaturitiesDetails">
        <link:definition>2405404 - Disclosure - Investment Securities - Contractual Maturities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentSecuritiesFairValueMeasurementsAndNoncurrentUnconsolidatedEntitiesDetails" roleURI="http://www.echostar.com/role/InvestmentSecuritiesFairValueMeasurementsAndNoncurrentUnconsolidatedEntitiesDetails">
        <link:definition>2405406 - Disclosure - Investment Securities - Fair Value Measurements and Noncurrent Unconsolidated Entities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentSecuritiesMarketableInvestmentSecuritiesInLossPositionAndSalesOfMarketableInvestmentSecuritiesDetails" roleURI="http://www.echostar.com/role/InvestmentSecuritiesMarketableInvestmentSecuritiesInLossPositionAndSalesOfMarketableInvestmentSecuritiesDetails">
        <link:definition>2405405 - Disclosure - Investment Securities - Marketable Investment Securities in a Loss Position and Sales of Marketable Investment Securities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentSecuritiesScheduleOfInvestmentsDetails" roleURI="http://www.echostar.com/role/InvestmentSecuritiesScheduleOfInvestmentsDetails">
        <link:definition>2405402 - Disclosure - Investment Securities - Schedule of Investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentSecuritiesTables" roleURI="http://www.echostar.com/role/InvestmentSecuritiesTables">
        <link:definition>2305301 - Disclosure - Investment Securities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentSecuritiesUnrealizedGainsLossesDetails" roleURI="http://www.echostar.com/role/InvestmentSecuritiesUnrealizedGainsLossesDetails">
        <link:definition>2405403 - Disclosure - Investment Securities - Unrealized Gains (Losses) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OrganizationAndBusinessActivities" roleURI="http://www.echostar.com/role/OrganizationAndBusinessActivities">
        <link:definition>2101100 - Disclosure - Organization and Business Activities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OrganizationAndBusinessActivitiesDetails" roleURI="http://www.echostar.com/role/OrganizationAndBusinessActivitiesDetails">
        <link:definition>2401401 - Disclosure - Organization and Business Activities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherComprehensiveIncomeLossAndRelatedTaxEffects" roleURI="http://www.echostar.com/role/OtherComprehensiveIncomeLossAndRelatedTaxEffects">
        <link:definition>2104100 - Disclosure - Other Comprehensive Income (Loss) and Related Tax Effects</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherComprehensiveIncomeLossAndRelatedTaxEffectsDetails" roleURI="http://www.echostar.com/role/OtherComprehensiveIncomeLossAndRelatedTaxEffectsDetails">
        <link:definition>2404402 - Disclosure - Other Comprehensive Income (Loss) and Related Tax Effects (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherComprehensiveIncomeLossAndRelatedTaxEffectsTables" roleURI="http://www.echostar.com/role/OtherComprehensiveIncomeLossAndRelatedTaxEffectsTables">
        <link:definition>2304301 - Disclosure - Other Comprehensive Income (Loss) and Related Tax Effects (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipment" roleURI="http://www.echostar.com/role/PropertyAndEquipment">
        <link:definition>2108100 - Disclosure - Property and Equipment</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipmentConstructionInProgressDetails" roleURI="http://www.echostar.com/role/PropertyAndEquipmentConstructionInProgressDetails">
        <link:definition>2408403 - Disclosure - Property and Equipment - Construction in Progress (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipmentDepreciationDetails" roleURI="http://www.echostar.com/role/PropertyAndEquipmentDepreciationDetails">
        <link:definition>2408404 - Disclosure - Property and Equipment - Depreciation (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipmentSatellitesDetails" roleURI="http://www.echostar.com/role/PropertyAndEquipmentSatellitesDetails">
        <link:definition>2408405 - Disclosure - Property and Equipment - Satellites (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipmentScheduleOfPpeDetails" roleURI="http://www.echostar.com/role/PropertyAndEquipmentScheduleOfPpeDetails">
        <link:definition>2408402 - Disclosure - Property and Equipment - Schedule of PP&amp;E (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyAndEquipmentTables" roleURI="http://www.echostar.com/role/PropertyAndEquipmentTables">
        <link:definition>2308301 - Disclosure - Property and Equipment (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="QuarterlyFinancialDataUnaudited" roleURI="http://www.echostar.com/role/QuarterlyFinancialDataUnaudited">
        <link:definition>2115100 - Disclosure - Quarterly Financial Data (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="QuarterlyFinancialDataUnauditedDetails" roleURI="http://www.echostar.com/role/QuarterlyFinancialDataUnauditedDetails">
        <link:definition>2415402 - Disclosure - Quarterly Financial Data (Unaudited) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="QuarterlyFinancialDataUnauditedTables" roleURI="http://www.echostar.com/role/QuarterlyFinancialDataUnauditedTables">
        <link:definition>2315301 - Disclosure - Quarterly Financial Data (Unaudited) (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactions" roleURI="http://www.echostar.com/role/RelatedPartyTransactions">
        <link:definition>2116100 - Disclosure - Related Party Transactions</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactionsAgreementsDetails" roleURI="http://www.echostar.com/role/RelatedPartyTransactionsAgreementsDetails">
        <link:definition>2416401 - Disclosure - Related Party Transactions - Agreements (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactionsOtherAgreementsDetails" roleURI="http://www.echostar.com/role/RelatedPartyTransactionsOtherAgreementsDetails">
        <link:definition>2416403 - Disclosure - Related Party Transactions - Other Agreements (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RelatedPartyTransactionsTaxSharingAgreementDetails" roleURI="http://www.echostar.com/role/RelatedPartyTransactionsTaxSharingAgreementDetails">
        <link:definition>2416402 - Disclosure - Related Party Transactions - Tax Sharing Agreement (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleIiValuationAndQualifyingAccounts" roleURI="http://www.echostar.com/role/ScheduleIiValuationAndQualifyingAccounts">
        <link:definition>2119100 - Disclosure - Schedule II - Valuation and Qualifying Accounts</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ScheduleIiValuationAndQualifyingAccountsDetails" roleURI="http://www.echostar.com/role/ScheduleIiValuationAndQualifyingAccountsDetails">
        <link:definition>2419401 - Disclosure - Schedule II - Valuation and Qualifying Accounts (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentReporting" roleURI="http://www.echostar.com/role/SegmentReporting">
        <link:definition>2114100 - Disclosure - Segment Reporting</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentReportingGeographicInformationDetails" roleURI="http://www.echostar.com/role/SegmentReportingGeographicInformationDetails">
        <link:definition>2414403 - Disclosure - Segment Reporting - Geographic Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentReportingRevenueCapitalExpendituresAndEbitdaDetails" roleURI="http://www.echostar.com/role/SegmentReportingRevenueCapitalExpendituresAndEbitdaDetails">
        <link:definition>2414402 - Disclosure - Segment Reporting - Revenue, Capital Expenditures, and EBITDA (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentReportingTables" roleURI="http://www.echostar.com/role/SegmentReportingTables">
        <link:definition>2314301 - Disclosure - Segment Reporting (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentReportingTransactionsWithMajorCustomersDetails" roleURI="http://www.echostar.com/role/SegmentReportingTransactionsWithMajorCustomersDetails">
        <link:definition>2414404 - Disclosure - Segment Reporting - Transactions with Major Customers (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SubsequentEvent" roleURI="http://www.echostar.com/role/SubsequentEvent">
        <link:definition>2118100 - Disclosure - Subsequent Event</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SubsequentEventDetails" roleURI="http://www.echostar.com/role/SubsequentEventDetails">
        <link:definition>2418401 - Disclosure - Subsequent Event (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryOfSignificantAccountingPolicies" roleURI="http://www.echostar.com/role/SummaryOfSignificantAccountingPolicies">
        <link:definition>2102100 - Disclosure - Summary of Significant Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryOfSignificantAccountingPoliciesDetails" roleURI="http://www.echostar.com/role/SummaryOfSignificantAccountingPoliciesDetails">
        <link:definition>2402402 - Disclosure - Summary of Significant Accounting Policies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryOfSignificantAccountingPoliciesPolicies" roleURI="http://www.echostar.com/role/SummaryOfSignificantAccountingPoliciesPolicies">
        <link:definition>2202201 - Disclosure - Summary of Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalGuarantorAndNonGuarantorFinancialInformation" roleURI="http://www.echostar.com/role/SupplementalGuarantorAndNonGuarantorFinancialInformation">
        <link:definition>2117100 - Disclosure - Supplemental Guarantor and Non-Guarantor Financial Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalGuarantorAndNonGuarantorFinancialInformationConsolidatingBalanceSheetDetails" roleURI="http://www.echostar.com/role/SupplementalGuarantorAndNonGuarantorFinancialInformationConsolidatingBalanceSheetDetails">
        <link:definition>2417402 - Disclosure - Supplemental Guarantor and Non-Guarantor Financial Information - Consolidating Balance Sheet (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalGuarantorAndNonGuarantorFinancialInformationConsolidatingStatementOfCashFlowsDetails" roleURI="http://www.echostar.com/role/SupplementalGuarantorAndNonGuarantorFinancialInformationConsolidatingStatementOfCashFlowsDetails">
        <link:definition>2417404 - Disclosure - Supplemental Guarantor and Non-Guarantor Financial Information - Consolidating Statement of Cash Flows (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalGuarantorAndNonGuarantorFinancialInformationConsolidatingStatementOfOperationsDetails" roleURI="http://www.echostar.com/role/SupplementalGuarantorAndNonGuarantorFinancialInformationConsolidatingStatementOfOperationsDetails">
        <link:definition>2417403 - Disclosure - Supplemental Guarantor and Non-Guarantor Financial Information - Consolidating Statement of Operations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SupplementalGuarantorAndNonGuarantorFinancialInformationTables" roleURI="http://www.echostar.com/role/SupplementalGuarantorAndNonGuarantorFinancialInformationTables">
        <link:definition>2317301 - Disclosure - Supplemental Guarantor and Non-Guarantor Financial Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="TradeAccountsReceivable" roleURI="http://www.echostar.com/role/TradeAccountsReceivable">
        <link:definition>2106100 - Disclosure - Trade Accounts Receivable</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="TradeAccountsReceivableDetails" roleURI="http://www.echostar.com/role/TradeAccountsReceivableDetails">
        <link:definition>2406402 - Disclosure - Trade Accounts Receivable (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="TradeAccountsReceivableTables" roleURI="http://www.echostar.com/role/TradeAccountsReceivableTables">
        <link:definition>2306301 - Disclosure - Trade Accounts Receivable (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:element abstract="true" id="hssc_AMC16Member" name="AMC16Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_AccountingPoliciesLineItems" name="AccountingPoliciesLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_AccountingPoliciesTable" name="AccountingPoliciesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_AccountsReceivableContractsInProcessMember" name="AccountsReceivableContractsInProcessMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_AdjustmentsToAdditionalPaidInCapitalIssuanceOfRetailPreferredTrackingStock" name="AdjustmentsToAdditionalPaidInCapitalIssuanceOfRetailPreferredTrackingStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_AllOtherGeographicSegmentsMember" name="AllOtherGeographicSegmentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_AllOtherSegmentsAndEliminationsMember" name="AllOtherSegmentsAndEliminationsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_AllowanceForDoubtfulAccountsReceivableFromRelatedPartiesCurrent" name="AllowanceForDoubtfulAccountsReceivableFromRelatedPartiesCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="hssc_AsiaSatMember" name="AsiaSatMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_AvailableForSaleSecuritiesDebtMaturitiesAfterNextRollingTwelveMonthsFairValue" name="AvailableForSaleSecuritiesDebtMaturitiesAfterNextRollingTwelveMonthsFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="hssc_BusinessCombinationOwnershipPercentageAcquiredByRelatedParty" name="BusinessCombinationOwnershipPercentageAcquiredByRelatedParty" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="hssc_CaliforniaInstituteOfTechnologyMember" name="CaliforniaInstituteOfTechnologyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_CapitalLeasesFutureMinimumPaymentsExecutoryCostsAndOrbitalLocationLease" name="CapitalLeasesFutureMinimumPaymentsExecutoryCostsAndOrbitalLocationLease" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="hssc_CapitalizedSoftwarePolicyTextBlock" name="CapitalizedSoftwarePolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_CielSatelliteHoldingsIncMember" name="CielSatelliteHoldingsIncMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_CondensedConsolidatingFinancialInformationForSubsidiaryGuarantorsAndNonGuarantorsDisclosureAbstract" name="CondensedConsolidatingFinancialInformationForSubsidiaryGuarantorsAndNonGuarantorsDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_ConstructionInProgressOtherMember" name="ConstructionInProgressOtherMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_ContractualObligationsLineItems" name="ContractualObligationsLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_ContractualObligationsTypeAxis" name="ContractualObligationsTypeAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_ContractualObligationsTypeDomain" name="ContractualObligationsTypeDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_ContributionOfCapitalFromAffiliate" name="ContributionOfCapitalFromAffiliate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_CustomerRentalEquipmentMember" name="CustomerRentalEquipmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_DBSDNorthAmericaAgreementMember" name="DBSDNorthAmericaAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_DISHNetworkMember" name="DISHNetworkMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_DISHNimiq5AgreementMember" name="DISHNimiq5AgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_DebtInstrumentAnnualPotentialRedemptionAsAPercentOfAmountOutstanding" name="DebtInstrumentAnnualPotentialRedemptionAsAPercentOfAmountOutstanding" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_DebtInstrumentDebtDefaultMaximumAdditionalInterestPaymentRequirementPerWeek" name="DebtInstrumentDebtDefaultMaximumAdditionalInterestPaymentRequirementPerWeek" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_DebtInstrumentIssuePriceAsPercentageOfPrincipalAmount" name="DebtInstrumentIssuePriceAsPercentageOfPrincipalAmount" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="hssc_DebtInstrumentPercentOfDebtHoldersRequiredToCallDebt" name="DebtInstrumentPercentOfDebtHoldersRequiredToCallDebt" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_DebtInstrumentPotentialRedemptionAsAPercentOfPrincipal" name="DebtInstrumentPotentialRedemptionAsAPercentOfPrincipal" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_DebtInstrumentPurchasePriceDueToChangeOfControlAsPercentageOfAggregatePrincipalAmount" name="DebtInstrumentPurchasePriceDueToChangeOfControlAsPercentageOfAggregatePrincipalAmount" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="hssc_DeferredTaxAssetsOperatingLossTaxCreditAndOtherCarryforwards" name="DeferredTaxAssetsOperatingLossTaxCreditAndOtherCarryforwards" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="hssc_DefinedContributionPlanEchoStar401KPlanMember" name="DefinedContributionPlanEchoStar401KPlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_DefinedContributionPlanEligiblePeriodOfServiceForMatchingContribution" name="DefinedContributionPlanEligiblePeriodOfServiceForMatchingContribution" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_DefinedContributionPlanEmployerDiscretionaryContributionAmountNetOfForfeitures" name="DefinedContributionPlanEmployerDiscretionaryContributionAmountNetOfForfeitures" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="hssc_DefinedContributionPlanEmployerMatchEmployeeContributionLevelTwo" name="DefinedContributionPlanEmployerMatchEmployeeContributionLevelTwo" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_DefinedContributionPlanEmployerMatchLevelTwo" name="DefinedContributionPlanEmployerMatchLevelTwo" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_DefinedContributionPlanEmployersMatchingContributionAnnualVestingPercentageAfterSpecifiedPeriodOfService" name="DefinedContributionPlanEmployersMatchingContributionAnnualVestingPercentageAfterSpecifiedPeriodOfService" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_DefinedContributionPlanRoth401kPlanMember" name="DefinedContributionPlanRoth401kPlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_DeluxeEchoStarLLCMember" name="DeluxeEchoStarLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_DishMexicoMember" name="DishMexicoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_EarningsBeforeInterestTaxDepreciationAndAmortization" name="EarningsBeforeInterestTaxDepreciationAndAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_EchoStarAndHughesSatelliteSystemsCorporationMember" name="EchoStarAndHughesSatelliteSystemsCorporationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_EchoStarCorporationMember" name="EchoStarCorporationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_EchoStarIIIMember" name="EchoStarIIIMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_EchoStarIXMember" name="EchoStarIXMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_EchoStarOperatingL.L.C.Member" name="EchoStarOperatingL.L.C.Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_EchoStarProfessionalServicesAgreementMember" name="EchoStarProfessionalServicesAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_EchoStarSatelliteServicesBusinessMember" name="EchoStarSatelliteServicesBusinessMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_EchoStarTechnologiesBusinessMember" name="EchoStarTechnologiesBusinessMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_EchoStarVIIIMember" name="EchoStarVIIIMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_EchoStarVIIISatelliteCapacityLeasedToDishNetworkMember" name="EchoStarVIIISatelliteCapacityLeasedToDishNetworkMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_EchoStarVIIMember" name="EchoStarVIIMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_EchoStarVIMember" name="EchoStarVIMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_EchoStarXIIMember" name="EchoStarXIIMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_EchoStarXIMember" name="EchoStarXIMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_EchoStarXIVMember" name="EchoStarXIVMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_EchoStarXMember" name="EchoStarXMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_EchoStarXVIIMember" name="EchoStarXVIIMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_EchoStarXVIMember" name="EchoStarXVIMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_EmployeeStockPurchasePlanMaximumFairValueOfCommonStockPermittedToBePurchasedPerAnnum" name="EmployeeStockPurchasePlanMaximumFairValueOfCommonStockPermittedToBePurchasedPerAnnum" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="hssc_EquipmentRevenueRelatedParty" name="EquipmentRevenueRelatedParty" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="hssc_EquityInEarningsOfSubsidiaries" name="EquityInEarningsOfSubsidiaries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_Eutelsat65WestAMember" name="Eutelsat65WestAMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_FairValueMeasurementAssetAndLiabilityTransfersBetweenLevels" name="FairValueMeasurementAssetAndLiabilityTransfersBetweenLevels" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_FurnitureFixturesEquipmentAndOtherMember" name="FurnitureFixturesEquipmentAndOtherMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_HughesBroadbandDistributionAgreementMember" name="HughesBroadbandDistributionAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_HughesBusinessSegmentMember" name="HughesBusinessSegmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_HughesCommunicationsInc.Member" name="HughesCommunicationsInc.Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_HughesRetailGroupMember" name="HughesRetailGroupMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_HughesSystiqueCorporationMember" name="HughesSystiqueCorporationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_IncreaseDecreaseInCapitalExpendituresIncurredButNotYetPaid" name="IncreaseDecreaseInCapitalExpendituresIncurredButNotYetPaid" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_IndefiniteLivedRegulatoryAuthorizationsMember" name="IndefiniteLivedRegulatoryAuthorizationsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_IntangibleAssetsFiniteLivedAndIndefiniteLivedPolicyTextBlock" name="IntangibleAssetsFiniteLivedAndIndefiniteLivedPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_InvestmentsInSubsidiaries" name="InvestmentsInSubsidiaries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="hssc_LongtermDebtandCapitalLeaseObligationsMember" name="LongtermDebtandCapitalLeaseObligationsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_NetAssetsTransferredRelatedToTrackingStockTransaction" name="NetAssetsTransferredRelatedToTrackingStockTransaction" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="hssc_NetIncomeLossAttributableToNoncontrollingInterestEBITDAAdjustment" name="NetIncomeLossAttributableToNoncontrollingInterestEBITDAAdjustment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_Nimiq5Member" name="Nimiq5Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_NoncashOrPartNoncashTransferOfContract" name="NoncashOrPartNoncashTransferOfContract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_NorthAmericaOtherThanUSMember" name="NorthAmericaOtherThanUSMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_NumberOfSatellitesInGeostationaryOrbitUtilizedByReportingEntity" name="NumberOfSatellitesInGeostationaryOrbitUtilizedByReportingEntity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_NumberOfSubsidiariesAgainstWhichLawsuitFiled" name="NumberOfSubsidiariesAgainstWhichLawsuitFiled" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="hssc_OfferingCosts" name="OfferingCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_OneYearLondonInterbankOfferedRateMember" name="OneYearLondonInterbankOfferedRateMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_OperatingLeaseObligationsMember" name="OperatingLeaseObligationsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_OtherComprehensiveIncomeIncomeLossFromEquityMethodInvestmentsArisingDuringPeriodNetOfTax" name="OtherComprehensiveIncomeIncomeLossFromEquityMethodInvestmentsArisingDuringPeriodNetOfTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="hssc_OtherComprehensiveIncomeLossUnrealizedHoldingGainsLossesOnAvailableForSaleSecuritiesAndOtherAdjustmentsNetOfTax" name="OtherComprehensiveIncomeLossUnrealizedHoldingGainsLossesOnAvailableForSaleSecuritiesAndOtherAdjustmentsNetOfTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_OtherMajorCustomersMember" name="OtherMajorCustomersMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_PercentageOfCapitalStockHeldByRelatedParty" name="PercentageOfCapitalStockHeldByRelatedParty" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_PercentageOwnershipInVariableInterestEntityByOtherRelatedParties" name="PercentageOwnershipInVariableInterestEntityByOtherRelatedParties" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_PreferredTrackingStockMember" name="PreferredTrackingStockMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_PrepaidExpenseAndDepositsAssetsCurrent" name="PrepaidExpenseAndDepositsAssetsCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="hssc_PrinciplesOfConsolidationAndBasisOfPresentationPolicyTextBlock" name="PrinciplesOfConsolidationAndBasisOfPresentationPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_ProgressAmountsForSatelliteConstructionIncludingPrepaymentsUnderCapitalLeasesAndLaunchCostsMember" name="ProgressAmountsForSatelliteConstructionIncludingPrepaymentsUnderCapitalLeasesAndLaunchCostsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_QuetzSat1LeaseAgreementMember" name="QuetzSat1LeaseAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_QuetzSat1Member" name="QuetzSat1Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_QuetzSat1TransponderAgreementMember" name="QuetzSat1TransponderAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_RUSServiceImplementationAgreementMember" name="RUSServiceImplementationAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_ReductionOfCapitalLeaseObligationsAndAssociatedGainValue1" name="ReductionOfCapitalLeaseObligationsAndAssociatedGainValue1" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_RelatedPartyAdvancesMember" name="RelatedPartyAdvancesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_RelatedPartyTransactionAmountAgreedToBeFundedUnderTermLoanFacility" name="RelatedPartyTransactionAmountAgreedToBeFundedUnderTermLoanFacility" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="hssc_RelatedPartyTransactionsAgreementAutomaticRenewalPeriod" name="RelatedPartyTransactionsAgreementAutomaticRenewalPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_RelatedPartyTransactionsAgreementRenewalOptionAdditionalTerm" name="RelatedPartyTransactionsAgreementRenewalOptionAdditionalTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_RelatedPartyTransactionsAgreementRenewalOptionTerm" name="RelatedPartyTransactionsAgreementRenewalOptionTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_RelatedPartyTransactionsAgreementTerm" name="RelatedPartyTransactionsAgreementTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_RelatedPartyTransactionsAgreementTermFromCommencementOfServiceDate" name="RelatedPartyTransactionsAgreementTermFromCommencementOfServiceDate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_RelatedPartyTransactionsAgreementTerminationNoticeRequiredByReportingEntity" name="RelatedPartyTransactionsAgreementTerminationNoticeRequiredByReportingEntity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_RelatedPartyTransactionsAgreementTerminationRequiredNoticePeriodFromRelatedPartyMinimum" name="RelatedPartyTransactionsAgreementTerminationRequiredNoticePeriodFromRelatedPartyMinimum" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_RelatedPartyTransactionsGrantsReceivableByRelatedParty" name="RelatedPartyTransactionsGrantsReceivableByRelatedParty" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="hssc_RelatedPartyTransactionsNumberOfDBSTranspondersAvailable" name="RelatedPartyTransactionsNumberOfDBSTranspondersAvailable" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="hssc_RelatedPartyTransactionsNumberOfDBSTranspondersReceivingServices" name="RelatedPartyTransactionsNumberOfDBSTranspondersReceivingServices" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="hssc_RelatedPartyTransactionsNumberOfDBSTranspondersReceivingServicesSublease" name="RelatedPartyTransactionsNumberOfDBSTranspondersReceivingServicesSublease" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="hssc_RelatedPartyTransactionsNumberOfOwnedSatellitesTransferred" name="RelatedPartyTransactionsNumberOfOwnedSatellitesTransferred" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_RelatedPartyTransactionsNumberOfSatellitesReceived" name="RelatedPartyTransactionsNumberOfSatellitesReceived" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_RelatedPartyTransactionsPercentageOfEconomicInterestHeld" name="RelatedPartyTransactionsPercentageOfEconomicInterestHeld" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_RelatedPartyTransactionsRequiredMinimumNoticePeriodForTerminationOfAgreement" name="RelatedPartyTransactionsRequiredMinimumNoticePeriodForTerminationOfAgreement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_RelatedPartyTransactionsRequiredMinimumNoticePeriodForTerminationOfSpecificService" name="RelatedPartyTransactionsRequiredMinimumNoticePeriodForTerminationOfSpecificService" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_RenewalOptionReductioninYears" name="RenewalOptionReductioninYears" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_SESLatinAmericaMember" name="SESLatinAmericaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_SPACEWAY3Member" name="SPACEWAY3Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_SatelliteAndTrackingStockTransactionMember" name="SatelliteAndTrackingStockTransactionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_SatelliteLeasingServiceAgreementMember" name="SatelliteLeasingServiceAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_SatelliteRelatedEquipmentMember" name="SatelliteRelatedEquipmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_SatelliteRelatedExpenses" name="SatelliteRelatedExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_SatelliteRelatedObligationMember" name="SatelliteRelatedObligationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_SatellitesMember" name="SatellitesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_ScheduleOfCarryingAmountOfNetAssetsTransferredUnderTrackingStockTransactionTableTextBlock" name="ScheduleOfCarryingAmountOfNetAssetsTransferredUnderTrackingStockTransactionTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_ScheduleOfConstructionInProgressTableTextBlock" name="ScheduleOfConstructionInProgressTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_ScheduleOfContractualObligationsTable" name="ScheduleOfContractualObligationsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_ScheduleOfDefinedContributionBenefitPlansDisclosuresLineItems" name="ScheduleOfDefinedContributionBenefitPlansDisclosuresLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_ScheduleOfDepreciationExpenseTableTextBlock" name="ScheduleOfDepreciationExpenseTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_ScheduleOfNetAmountCreditedToShareholdersEquityTableTextBlock" name="ScheduleOfNetAmountCreditedToShareholdersEquityTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_ScheduleOfReconciliationOfEBITDAToIncomeLossBeforeIncomeTaxesTableTextBlock" name="ScheduleOfReconciliationOfEBITDAToIncomeLossBeforeIncomeTaxesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_ScheduleOfSatellitesTableTextBlock" name="ScheduleOfSatellitesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_SeniorSecuredNotes5.250PercentDue2026Member" name="SeniorSecuredNotes5.250PercentDue2026Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_SeniorSecuredNotes6.50PercentDue2019Member" name="SeniorSecuredNotes6.50PercentDue2019Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_SeniorUnsecuredNotes6.625PercentDue2026Member" name="SeniorUnsecuredNotes6.625PercentDue2026Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_SeniorUnsecuredNotes7.625PercentDue2021Member" name="SeniorUnsecuredNotes7.625PercentDue2021Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_ServicesAndOtherRevenueRelatedParty" name="ServicesAndOtherRevenueRelatedParty" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_ShareExchangeAgreementMember" name="ShareExchangeAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_SoftwareUsefulLife" name="SoftwareUsefulLife" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_StockholdersEquityIncreaseDecreaseAbstract" name="StockholdersEquityIncreaseDecreaseAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_SubscriberAcquisitionCostsPolicyTextBlock" name="SubscriberAcquisitionCostsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_TargetedOrTrackingStockPortionOfVoteEntitledToEachShare" name="TargetedOrTrackingStockPortionOfVoteEntitledToEachShare" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="hssc_TargetedOrTrackingStockRelatedPartyTransactionsTransferredCash" name="TargetedOrTrackingStockRelatedPartyTransactionsTransferredCash" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="hssc_TargetedOrTrackingStockRelatedPartyTransactionsTransferredCurrentLiabilities" name="TargetedOrTrackingStockRelatedPartyTransactionsTransferredCurrentLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="hssc_TargetedOrTrackingStockRelatedPartyTransactionsTransferredNetAssets" name="TargetedOrTrackingStockRelatedPartyTransactionsTransferredNetAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="hssc_TargetedOrTrackingStockRelatedPartyTransactionsTransferredNoncurrentLiabilities" name="TargetedOrTrackingStockRelatedPartyTransactionsTransferredNoncurrentLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="hssc_TargetedOrTrackingStockRelatedPartyTransactionsTransferredPropertyAndEquipment" name="TargetedOrTrackingStockRelatedPartyTransactionsTransferredPropertyAndEquipment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="hssc_TargetedOrTrackingStockStockDisclosureTextBlock" name="TargetedOrTrackingStockStockDisclosureTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_TeleSatTransponderAgreementMember" name="TeleSatTransponderAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_TelemetryTrackingAndControlAgreementMember" name="TelemetryTrackingAndControlAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_TelesatCanadaMember" name="TelesatCanadaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_TerreStarAgreementMember" name="TerreStarAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="hssc_TotalNonoperatingIncomeExpenseInterestAndDebtExpenseAndIncomeLossFromEquityMethodInvestments" name="TotalNonoperatingIncomeExpenseInterestAndDebtExpenseAndIncomeLossFromEquityMethodInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_TwoThousandTwentySixNotesMember" name="TwoThousandTwentySixNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="hssc_UnamortizedDebtIssuanceCostsMember" name="UnamortizedDebtIssuanceCostsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
