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  <xs:element id="tsat_DeferredFinancingChargesBalance" name="DeferredFinancingChargesBalance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xs:element id="tsat_TransferredToDebtIssueCosts" name="TransferredToDebtIssueCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="tsat_DeferredStockSettled" name="DeferredStockSettled" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="tsat_EffectOfDilutedSecurities" name="EffectOfDilutedSecurities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xs:element id="tsat_ScheduleOfReconciliationsOfTheDenominatorsOfTheBasicAndDilutedPerShareAbstract" name="ScheduleOfReconciliationsOfTheDenominatorsOfTheBasicAndDilutedPerShareAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_EarningsPerShareScheduleofReconciliationsoftheDenominatorsoftheBasicandDilutedPerShareDetailsTable" name="EarningsPerShareScheduleofReconciliationsoftheDenominatorsoftheBasicandDilutedPerShareDetailsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_PerformanceShareUnits" name="PerformanceShareUnits" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="tsat_NonControllingInterestDetailsTable" name="NonControllingInterestDetailsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_GovernmentGrantDetailsTable" name="GovernmentGrantDetailsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_FinancialInstrumentsDetailsTable" name="FinancialInstrumentsDetailsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_InterestRatesFloorMember" name="InterestRatesFloorMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_NorthAmericanMember" name="NorthAmericanMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_PrivatePlacementsMember" name="PrivatePlacementsMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_RepurchaseOfPrincipalAmount" name="RepurchaseOfPrincipalAmount" type="dtr:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="tsat_ShareCapitalDetailsTable" name="ShareCapitalDetailsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_ClassBVariableVotingSharesMember" name="ClassBVariableVotingSharesMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_TelesatPublicSharesAbstract" name="TelesatPublicSharesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_BreakDownOfTelesatPublicShares" name="BreakDownOfTelesatPublicShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xs:element id="tsat_DebtFinancingexcludingDeferredFinancingCostsPrepaymentOptionsAndLossOnRepayments" name="DebtFinancingexcludingDeferredFinancingCostsPrepaymentOptionsAndLossOnRepayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xs:element id="tsat_ScheduleOfMaturityOfFinancialAssetsAbstract" name="ScheduleOfMaturityOfFinancialAssetsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_FinancialInstrumentsScheduleofMaturityofFinancialAssetsDetailsTable" name="FinancialInstrumentsScheduleofMaturityofFinancialAssetsDetailsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_NetIncreaseIncomeImpactOfPercentIncreaseDecrease" name="NetIncreaseIncomeImpactOfPercentIncreaseDecrease" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xs:element id="tsat_OtherComprehensiveIncomeLossImpactOf5PercentIncreaseDecrease" name="OtherComprehensiveIncomeLossImpactOf5PercentIncreaseDecrease" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xs:element id="tsat_ShareBasedCompensationPlansDetailsTable" name="ShareBasedCompensationPlansDetailsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_SatellitesPropertyAndOtherEquipmentMember" name="SatellitesPropertyAndOtherEquipmentMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_OperatingExpensesMember" name="OperatingExpensesMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_GovernmentGrantLineItems" name="GovernmentGrantLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_NonrefundableGovernmentContributionValue" name="NonrefundableGovernmentContributionValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xs:element id="tsat_RecordedRelatingToAgreement" name="RecordedRelatingToAgreement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="tsat_OtherIncomeTaxes" name="OtherIncomeTaxes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="tsat_DebtExchange" name="DebtExchange" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="tsat_PensionPlansTotalMember" name="PensionPlansTotalMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_OtherPostemploymentBenefitPlansCanadianMember" name="OtherPostemploymentBenefitPlansCanadianMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_IncomeTaxePaid" name="IncomeTaxePaid" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xs:element id="tsat_IncomeTaxesReceived" name="IncomeTaxesReceived" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xs:element id="tsat_TowThousandAndTwentySevenSeniorSecuredNotesMember" name="TowThousandAndTwentySevenSeniorSecuredNotesMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_FinancialInstrumentsScheduleofMovementsinTelesatLightspeedFinancingWarrantsDetailsTable" name="FinancialInstrumentsScheduleofMovementsinTelesatLightspeedFinancingWarrantsDetailsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_WarrantsAxis" name="WarrantsAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_WarrantsDomainDomain" name="WarrantsDomainDomain" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_ScheduleOfMovementsInTelesatLightspeedFinancingWarrantsLineItems" name="ScheduleOfMovementsInTelesatLightspeedFinancingWarrantsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_EmployeeBenefitPlansScheduleofExpensesIncludedontheCondensedConsolidatedStatementsofIncomeLossDetailsTable" name="EmployeeBenefitPlansScheduleofExpensesIncludedontheCondensedConsolidatedStatementsofIncomeLossDetailsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_PensionPlansCanadianMember" name="PensionPlansCanadianMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_PensionPlansUSMember" name="PensionPlansUSMember" type="dtr:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_ScheduleOfBalanceSheetObligationsDistributedBetweenPensionAndOtherPostEmploymentBenefitsAbstract" name="ScheduleOfBalanceSheetObligationsDistributedBetweenPensionAndOtherPostEmploymentBenefitsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_EmployeeBenefitPlansScheduleofBalanceSheetObligationsDistributedBetweenPensionandOtherPostEmploymentBenefitsDetailsTable" name="EmployeeBenefitPlansScheduleofBalanceSheetObligationsDistributedBetweenPensionandOtherPostEmploymentBenefitsDetailsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xs:element id="tsat_InterestPayments" name="InterestPayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xs:element id="tsat_ScheduleOfInterestPaidNetOfInterestReceivedAbstract" name="ScheduleOfInterestPaidNetOfInterestReceivedAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
</xs:schema>
