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Content for TS 29.563 Word version: 18.5.0

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5.1 Introduction 5.2 Nhss_UEAuthentication Service 5.3 Nhss_SubscriberDataManagement Service 5.4 Nhss_UEContextManagement Service 5.5 Nhss_EventExposure Service

5 Services offered by the HSS p. 11

5.1 Introduction p. 11

5.2 Nhss_UEAuthentication Service p. 11

5.2.1 Service Description p. 11

5.2.2 Service Operations p. 11

5.2.2.1 Introduction p. 11

5.2.2.2 Get p. 12

5.2.2.2.1 General p. 12

5.2.2.2.2 Authentication Vector Retrieval p. 12

5.3 Nhss_SubscriberDataManagement Service p. 12

5.3.1 Service Description p. 12

5.3.2 Service Operations p. 13

5.3.2.1 Introduction p. 13

5.3.2.2 Get p. 13

5.3.2.2.1 General p. 13

5.3.2.2.2 UE Context In PGW Data Retrieval p. 13

5.3.2.3 Subscribe p. 14

5.3.2.3.1 General p. 14

5.3.2.3.2 Subscription to notifications of data change p. 14

5.3.2.4 Unsubscribe p. 15

5.3.2.4.1 General p. 15

5.3.2.4.2 Unsubscribe to notifications of data change p. 15

5.3.2.5 Notification p. 15

5.3.2.5.1 General p. 15

5.3.2.5.2 Data Change Notification To NF p. 15

5.3.2.6 ModifySubscription |R17| p. 16

5.3.2.6.1 General p. 16

5.3.2.6.2 Modification of a subscription to notifications of data change p. 16

5.4 Nhss_UEContextManagement Service p. 17

5.4.1 Service Description p. 17

5.4.2 Service Operations p. 17

5.4.2.1 Introduction p. 17

5.4.2.2 SnDeregistration p. 17

5.4.2.2.1 General p. 17

5.4.2.2.2 SN Deregistration p. 17

5.4.2.3 IMEI Update |R17| p. 18

5.4.2.4 Roaming Status Update |R17| p. 19

5.5 Nhss_EventExposure Service p. 19

5.5.1 Service Description p. 19

5.5.2 Service Operations p. 19

5.5.2.1 Introduction p. 19

5.5.2.2 Subscribe p. 20

5.5.2.2.1 General p. 20

5.5.2.2.2 Subscription to Notification of event occurrence p. 20

5.5.2.3 Unsubscribe p. 21

5.5.2.3.1 General p. 21

5.5.2.3.2 Unsubscribe to notifications of event occurrence p. 21

5.5.2.4 Notify p. 22

5.5.2.4.1 General p. 22

5.5.2.4.2 Event Occurrence Notification p. 22

5.5.2.5 ModifySubscription p. 22

5.5.2.5.1 General p. 22

5.5.2.5.2 Modification of a subscription p. 22