Time Synchronization Exposure Subscriptions

/{afId}/subscriptions

GET

Read all subscriptions for a given AF

POST

Create a new subscription to time synchronization exposure

Individual Time Synchronization Exposure Subscription

/{afId}/subscriptions/{subscriptionId}

GET

Read a subscription to time synchronization exposure

PUT

Modify all of the properties of an existing subscription to time synchronization exposure

DELETE

Delete a subscription to time synchronization exposure

Time Synchronization Exposure Configurations

/{afId}/subscriptions/{subscriptionId}/configurations

GET

Read all configurations for a given AF and subscription

POST

Create a new configuration to time synchronization exposure

Individual Time Synchronization Exposure Configuration

/{afId}/subscriptions/{subscriptionId}/configurations/{instanceReference}

GET

Read a configuration to time synchronization exposure

PUT

Modify all of the properties of an existing configuration to time synchronization exposure

DELETE

Delete a configuration to time synchronization exposure

DELETE

DELETE a new configuration of 5G access stratum time distribution.

apiRoot

string

Clause 5.2.4 of 3GPP TS 29.122 [4].

afId

string

Identifier of the AF.

supp-feat

SupportedFeatures

O

0..1

The features supported by the NF service consumer.

N/A

array(TimeSyncExposureSubsc)

M

0..N

200 OK

The subscription information for the AF in the request URI are returned.

N/A

307 Temporary Redirect

Temporary redirection, during subscription retrieval. The response shall include a Location header field containing an alternative URI of the resource located in an alternative NEF.

Redirection handling is described in clause 5.2.10 of 3GPP TS 29.122 [4].

N/A

308 Permanent Redirect

Permanent redirection, during subscription retrieval. The response shall include a Location header field containing an alternative URI of the resource located in an alternative NEF.

Redirection handling is described in clause 5.2.10 of 3GPP TS 29.122 [4].

NOTE: The mandatory HTTP error status codes for the GET method listed in table 5.2.6-1 of 3GPP TS 29.122 [4] also apply.

Location

string

M

1

An alternative URI of the resource located in an alternative NEF.

Location

string

M

1

An alternative URI of the resource located in an alternative NEF.

TimeSyncExposureSubsc

M

1

Contains the information for the creation of a new Individual Time Synchronization Exposure Subscription resource.

TimeSyncExposureSubsc

M

1

201 Created

The subscription was created successfully.

The URI of the created resource shall be returned in the "Location" HTTP header.

NOTE: The mandatory HTTP error status codes for the POST method listed in table 5.2.6-1 of 3GPP TS 29.122 [4] also apply.

Location

string

M

1

Contains the URI of the newly created resource, according to the structure: {apiRoot}/3gpp-time-sync/v1/{afId}/subscriptions/{subscriptionId}

apiRoot

string

Clause 5.2.4 of 3GPP TS 29.122 [4].

afId

string

Identifier of the AF.

subscriptionId

string

Identifier of the subscription resource.

supp-feat

SupportedFeatures

O

0..1

The features supported by the NF service consumer.

N/A

TimeSyncExposureSubsc

M

1

200 OK

The subscription information for the AF in the request URI are returned.

N/A

307 Temporary Redirect

Temporary redirection, during subscription retrieval. The response shall include a Location header field containing an alternative URI of the resource located in an alternative NEF.

Redirection handling is described in clause 5.2.10 of 3GPP TS 29.122 [4].

N/A

308 Permanent Redirect

Permanent redirection, during subscription retrieval. The response shall include a Location header field containing an alternative URI of the resource located in an alternative NEF.

Redirection handling is described in clause 5.2.10 of 3GPP TS 29.122 [4].

NOTE: The mandatory HTTP error status codes for the GET method listed in table 5.2.6-1 of 3GPP TS 29.122 [4] also apply.

Location

string

M

1

An alternative URI of the resource located in an alternative NEF.

Location

string

M

1

An alternative URI of the resource located in an alternative NEF.

TimeSyncExposureSubsc

M

1

Modify an existing Time Synchronization Exposure Subscription.

TimeSyncExposureSubsc

M

1

200 OK

The subscription was updated successfully.

N/A

204 No Content

The subscription was updated successfully.

N/A

307 Temporary Redirect

Temporary redirection, during subscription modification. The response shall include a Location header field containing an alternative URI of the resource located in an alternative NEF.

Redirection handling is described in clause 5.2.10 of 3GPP TS 29.122 [4].

N/A

308 Permanent Redirect

Permanent redirection, during subscription modification. The response shall include a Location header field containing an alternative URI of the resource located in an alternative NEF.

Redirection handling is described in clause 5.2.10 of 3GPP TS 29.122 [4].

NOTE: The mandatory HTTP error status codes for the PUT method listed in table 5.2.6-1 of 3GPP TS 29.122 [4] also apply.

Location

string

M

1

An alternative URI of the resource located in an alternative NEF.

Location

string

M

1

An alternative URI of the resource located in an alternative NEF.

N/A

N/A

N/A

204 No Content

The subscription was terminated successfully.

N/A

307 Temporary Redirect

Temporary redirection, during subscription termination. The response shall include a Location header field containing an alternative URI of the resource located in an alternative NEF.

Redirection handling is described in clause 5.2.10 of 3GPP TS 29.122 [4].

N/A

308 Permanent Redirect

Permanent redirection, during subscription termination. The response shall include a Location header field containing an alternative URI of the resource located in an alternative NEF.

Redirection handling is described in clause 5.2.10 of 3GPP TS 29.122 [4].

NOTE: The mandatory HTTP error status codes for the DELETE method listed in table 5.2.6-1 of 3GPP TS 29.122 [4] also apply.

Location

string

M

1

An alternative URI of the resource located in an alternative NEF.

Location

string

M

1

An alternative URI of the resource located in an alternative NEF.

apiRoot

string

Clause 5.2.4 of 3GPP TS 29.122 [4].

afId

string

Identifier of the AF.

subscriptionId

string

Identifier of the subscription resource.

N/A

N/A

array(TimeSyncExposureConfig)

M

0..N

200 OK

The configuration information for the AF in the request URI are returned.

N/A

307 Temporary Redirect

Temporary redirection, during subscription retrieval. The response shall include a Location header field containing an alternative URI of the resource located in an alternative NEF.

Redirection handling is described in clause 5.2.10 of 3GPP TS 29.122 [4].

N/A

308 Permanent Redirect

Permanent redirection, during subscription retrieval. The response shall include a Location header field containing an alternative URI of the resource located in an alternative NEF.

Redirection handling is described in clause 5.2.10 of 3GPP TS 29.122 [4].

NOTE: The mandatory HTTP error status codes for the GET method listed in table 5.2.6-1 of 3GPP TS 29.122 [4] also apply.

Location

string

M

1

An alternative URI of the resource located in an alternative NEF.

Location

string

M

1

An alternative URI of the resource located in an alternative NEF.

TimeSyncExposureConfig

M

1

Parameters to create a configuration and to activate time synchronization service.

TimeSyncExposureConfig

M

1

201 Created

The subscription was created successfully.

The URI of the created resource shall be returned in the "Location" HTTP header.

NOTE: The mandatory HTTP error status codes for the POST method listed in table 5.2.6-1 of 3GPP TS 29.122 [4] also apply.

Location

string

M

1

Contains the URI of the newly created resource, according to the structure: {apiRoot}/3gpp-time-sync/v1/{afId}/subscriptions/{subscriptionId}/configurations/{instanceReference}

apiRoot

string

Clause 5.2.4 of 3GPP TS 29.122 [4].

afId

string

Identifier of the AF.

subscriptionId

string

Identifier of the subscription resource.

instanceReference

string

Identifier of the PTP instance resource

N/A

N/A

TimeSyncExposureConfig

M

1

200 OK

The configuration information for the AF in the request URI are returned.

N/A

307 Temporary Redirect

Temporary redirection, during subscription retrieval. The response shall include a Location header field containing an alternative URI of the resource located in an alternative NEF.

Redirection handling is described in clause 5.2.10 of 3GPP TS 29.122 [4].

N/A

308 Permanent Redirect

Permanent redirection, during subscription retrieval. The response shall include a Location header field containing an alternative URI of the resource located in an alternative NEF.

Redirection handling is described in clause 5.2.10 of 3GPP TS 29.122 [4].

NOTE: The mandatory HTTP error status codes for the GET method listed in table 5.2.6-1 of 3GPP TS 29.122 [4] also apply.

Location

string

M

1

An alternative URI of the resource located in an alternative NEF.

Location

string

M

1

An alternative URI of the resource located in an alternative NEF.

TimeSyncExposureConfig

M

1

Modify an existing Time Synchronization Exposure Configuration.

TimeSyncExposureConfig

M

1

200 OK

The subscription was updated successfully.

N/A

204 No Content

The subscription was updated successfully.

N/A

307 Temporary Redirect

Temporary redirection, during subscription modification. The response shall include a Location header field containing an alternative URI of the resource located in an alternative NEF.

Redirection handling is described in clause 5.2.10 of 3GPP TS 29.122 [4].

N/A

308 Permanent Redirect

Permanent redirection, during subscription modification. The response shall include a Location header field containing an alternative URI of the resource located in an alternative NEF.

Redirection handling is described in clause 5.2.10 of 3GPP TS 29.122 [4].

NOTE: The mandatory HTTP error status codes for the PUT method listed in table 5.2.6-1 of 3GPP TS 29.122 [4] also apply.

Location

string

M

1

An alternative URI of the resource located in an alternative NEF.

Location

string

M

1

An alternative URI of the resource located in an alternative NEF.

N/A

N/A

N/A

204 No Content

The configuration was terminated successfully.

N/A

307 Temporary Redirect

Temporary redirection, during subscription termination. The response shall include a Location header field containing an alternative URI of the resource located in an alternative NEF.

Redirection handling is described in clause 5.2.10 of 3GPP TS 29.122 [4].

N/A

308 Permanent Redirect

Permanent redirection, during subscription termination. The response shall include a Location header field containing an alternative URI of the resource located in an alternative NEF.

Redirection handling is described in clause 5.2.10 of 3GPP TS 29.122 [4].

NOTE: The mandatory HTTP error status codes for the DELETE method listed in table 5.2.6-1 of 3GPP TS 29.122 [4] also apply.

Location

string

M

1

An alternative URI of the resource located in an alternative NEF.

Location

string

M

1

An alternative URI of the resource located in an alternative NEF.

Time Synchronization Capability Notification

{subsNotifUri}

POST

Time Synchronization Capability Notification for a list of UEs.

Time Synchronization Configuration Notification

{configNotifUri}

POST

Current State of Time Synchronization configuration Notification.

subsNotifUri

Callback reference provided by the AF during creation/modification of the subscription as defined in Table 5.15.4.3.2-1.

TimeSyncExposureSubsNotif

M

1

Provides the time synchroniziation capabilities of a list of UEs by the NEF to the AF.

N/A

204 No Content

The event notification is received successfully.

N/A

307 Temporary Redirect

Temporary redirection, during event notification. The response shall include a Location header field containing an alternative URI representing the end point of an alternative AF where the notification should be sent.

Redirection handling is described in clause 5.2.10 of 3GPP TS 29.122 [4].

N/A

308 Permanent Redirect

Permanent redirection, during event notification. The response shall include a Location header field containing an alternative URI representing the end point of an alternative AF where the notification should be sent.

Redirection handling is described in clause 5.2.10 of 3GPP TS 29.122 [4].

NOTE: The mandatory HTTP error status codes for the POST method listed in table 5.2.6-1 of 3GPP TS 29.122 [4] also apply.

Location

string

M

1

An alternative URI representing the end point of an alternative AF towards which the notification should be redirected.

Location

string

M

1

An alternative URI representing the end point of an alternative AF towards which the notification should be redirected.

configNotifUri

Callback reference provided by the AF during creation/modification of the configuration as defined in Table 5.15.4.3.6-1.

TimeSyncExposureConfigNotif

M

1

Provides the current state of time synchroniziation service configuration by the NEF to the AF.

N/A

204 No Content

The notification is received successfully.

N/A

307 Temporary Redirect

Temporary redirection, during event notification. The response shall include a Location header field containing an alternative URI representing the end point of an alternative AF where the notification should be sent.

Redirection handling is described in clause 5.2.10 of 3GPP TS 29.122 [4].

N/A

308 Permanent Redirect

Permanent redirection, during event notification. The response shall include a Location header field containing an alternative URI representing the end point of an alternative AF where the notification should be sent.

Redirection handling is described in clause 5.2.10 of 3GPP TS 29.122 [4].

NOTE: The mandatory HTTP error status codes for the POST method listed in table 5.2.6-1 of 3GPP TS 29.122 [4] also apply.

Location

string

M

1

An alternative URI representing the end point of an alternative AF towards which the notification should be redirected.

Location

string

M

1

An alternative URI representing the end point of an alternative AF towards which the notification should be redirected.

AsTimeResource

5.15.4.4.8

Identifies the supported 5G clock quality.

ConfigForPort

5.15.4.3.18

Contains configuration information for each port.

EventFilter

5.15.4.3.10

Contains the filter conditions to match for notifying the event(s) of time synchronization capabilities.

GmCapable

5.15.4.4.5

Identifies the supported grandmaster.

InstanceType

5.15.4.4.7

Identifies supported PTP instance type.

Protocol

5.15.4.4.4

Identifies the supported protocol.

PtpCapabilitiesPerUe

5.15.4.3.11

Contains the supported PTP capabilities per UE.

PtpInstance

5.15.4.3.12

Contains PTP instance configuration and activation information requested by the AF.

StageOfConfiguration

5.15.4.3.17

Contains the PTP port state of the time synchronization configuration.

StateOfDstt

5.15.4.3.19

Contains the PTP port state of a DS-TT

SubscribedEvent

5.15.4.4.6

Identifies the supported event.

SubsEventNotification

5.15.4.3.8

Represents the notification about a subscribed Individual Event.

TimeSyncCapability

5.15.4.3.3

Contains the time synchronization capability.

TimeSyncExposureConfig

5.15.4.3.6

Contains the Time Synchronization Configuration parameters.

TimeSyncExposureConfigNotif

5.15.4.3.9

Contains the notification of time synchronization service state.

TimeSyncExposureSubsc

5.15.4.3.2

Contains the requested parameters for the subscription to time synchronization capability notifications.

TimeSyncExposureSubsNotif

5.15.4.3.7

Contains the notification of time synchronization capability.

DateTime

3GPP TS 29.571 [8]

Dnn

3GPP TS 29.571 [8]

Identifies a DNN.

ExternalGroupId

3GPP TS 29.122 [4]

External Group Identifier for a user group.

NotificationMethod

3GPP TS 29.508 [26]

Gpsi

3GPP TS 29.571 [8]

Identifies a GPSI.

Snssai

3GPP TS 29.571 [8]

Identifies the S-NSSAI.

SupportedFeatures

3GPP TS 29.571 [8]

Used to negotiate the applicability of the optional features defined in table 5.15.5-1.

Uinteger

3GPP TS 29.571 [8]

Unsigned integer.

Uri

3GPP TS 29.571 [8]

Identifies a referenced resource.

exterGroupId

ExternalGroupId

C

0..1

Identifies a group of UE(s) for which the time synchronization capabilities is requested. (NOTE 1)

gpsis

array(Gpsi)

C

1..N

Contains a list of UE for which the time synchronization capabilities is requested. (NOTE 1)

anyUeInd

boolean

C

0..1

Identifies whether the AF request applies to any UE (i.e. all UEs). This attribute shall set to "true" if applicable for any UE, otherwise, set to "false". (NOTE 1) (NOTE 2)

notifMethod

NotificationMethod

O

0..1

If "notifMethod" is not supplied, the default value "ON_EVENT_DETECTION" applies.

dnn

Dnn

C

0..1

Identifies a DNN, a full DNN with both the Network Identifier and Operator Identifier, or a DNN with the Network Identifier only. (NOTE 2)

snssai

Snssai

C

0..1

Identifies an S-NSSAI. (NOTE 2)

afServiceId

string

O

0..1

Identifies a service on behalf of which the AF is issuing the request.

subscribedEvents

array(SubscribedEvent)

O

1..N

Identifies the requirement to be notified of the event(s).

eventFilters

array(EventFilter)

O

1..N

Contains the filter conditions to match for notifying the event(s) of time synchronization capabilities for a list of UE(s).

subsNotifUri

Uri

M

1

Notification URI for time sensitive capability reporting.

subsNotifId

string

M

1

Notification Correlation ID assigned by the NF service consumer.

maxReportNbr

Uinteger

O

0..1

If omitted, there is no limit.

expiry

DateTime

C

0..1

This attribute indicates the expiry time of the subscription, after which the NEF shall not send any event notifications and the subscription becomes invalid. It may be included in an event subscription request and may be included in an event subscription response based on operator policies. If an expiry time was included in the request, then the expiry time returned in the response should be less than or equal to that value. If the expiry time is not included in the response, the NF service consumer shall not associate an expiry time for the subscription.

repPeriod

DurationSec

C

0..1

Is supplied for notification Method "periodic".

requestTestNotification

boolean

O

0..1

Set to true by the AF to request the NEF to send a test notification as defined in clause 5.2.5.3 of 3GPP TS 29.122 [4]. Set to false or omitted otherwise.

Notification_test_event

websockNotifConfig

WebsockNotifConfig

O

0..1

Configuration parameters to set up notification delivery over Websocket protocol.

Notification_websocket

suppFeat

SupportedFeatures

C

0..1

Represents the features supported by the NF service consumer. This parameter shall be supplied by the NF service consumer in the POST request and the response that requested the creation of an Individual Time Synchronization Subscription resource.

NOTE 1: Only one of the properties "gpsis", "anyUeInd" or "externalGroupId" shall be included.

NOTE 2 The properties of "anyUeInd" may be included only when the properties of "dnn" and "snssai" are included.

upNodeId

Uint64

M

1

Identifies the applicable NW-TT. Contains a TSC user plane node Id. If integrated with TSN, the user plane node Id is a bridge Id defined in IEEE 802.1Q [51] clause 14.2.5.

gmCapables

array(GmCapable)

C

1..N

Indicates whether user plane node supports acting as a gPTP and/or PTP grandmaster.

(NOTE)

asTimeRes

AsTimeResource

C

0..1

Indicates the supported 5G clock quality (i.e. the source of time used by the 5GS). (NOTE)

ptpCapForUes

map(PtpCapabilitiesPerUe)

C

1..N

Contains the PTP capabilities supported by the list of UE(s). The key of the map is the gpsi.

Shall be present if the "gmCapables" attribute is included.

NOTE: At least one of the "gmCapables" attribute and "asTimeRes" attribute shall be included.

upNodeId

Uint64

M

1

Identifies the applicable NW-TT. Contains a TSC user plane node Id. If integrated with TSN, the user plane node Id is a bridge Id defined in IEEE 802.1Q [41] clause 14.2.5.

reqPtpIns

PtpInstance

M

1

Identifies the PtP instance configuration and activation requested by the AF.

gmEnable

boolean

C

0..1

Indicates that the AF requests 5GS to act as a grandmaster for PTP or gPTP if it is included and set to true. The default value "false" shall apply, if the attribute is not present.

gmPrio

Uinteger

C

0..1

Indicates a priority used as defaultDS.priority1 when generating Announce message when 5GS acts as (g)PTP GM. It may be present if the "gmEnable" is set to true.

timeDom

Uinteger

M

1

Indicate the (g)PTP domain that the (TSN)AF is located in.

timeSyncErrBdgt

Uinteger

O

0..1

Indicates the time synchronization budget for the time synchronization service in units of nanoseconds.

Minimum = 1.

tempValidity

TemporalValidity

O

0..1

Indicates the time period when the time synchronization service for a PTP instance is active.

configNotifUri

Uri

M

1

Notification URI for configuration state reporting.

configNotifId

string

M

1

Notification Correlation ID assigned by the NF service consumer.

subsNotifId

string

M

1

Notification Correlation ID assigned by the NF service consumer.

eventNotifs

array(SubsEventNotification)

M

1..N

Notifications about subscribed Individual Events

event

SubscribedEvent

M

1

Subscribed events.

timeSyncCapas

array(TimeSyncCapability)

O

1..N

Contains a list of time synchronization capabilities for the UE(s).

configNotifId

string

M

1

Notification Correlation ID assigned by the NF service consumer.

stateOfConfig

StateOfConfiguration

M

1

Indicates the current state of time synchroniztion service configuration

instanceTypes

array(InstanceType)

O

1..N

Indicates the PTP instance type(s).

transProtocols

array(Protocol)

O

1..N

Indicates the transport protocol type(s).

ptpProfiles

array(string)

O

1..N

Identifies the supported PTP profiles.

gpsi

Gpsi

M

1

Identifies the UE to which the reported PTP instance below apply.

ptpCaps

array(EventFilter)

M

1..N

Contains the reported PTP capabilities for the UE.

instanceType

InstanceType

M

1

Indicates the PTP instance type.

protocol

Protocol

M

1

Indicates the protocol type.

ptpProfile

string

M

1

Identifies the PTP profile.

portConfigs

arrary(ConfigForPort)

O

1..N

Contains the configurations for the PTP port(s) in the PTP instance.

stateOfNwtt

boolean

O

0..1

When the PTP port state is Leader, Follower or Passive, it is included and set to true to indicate the state of configuration for NW-TT port is active; when PTP port state is in any other case, it is included and set to false to indicate the state of configuration for NW-TT port is inactive. Default value is false. (NOTE)

stateOfDstts

array(StateOfDstt)

O

1..N

Contains the PTP port states of the DS-TT(s).

NOTE: Leader and Follower terms in this specification are aligned with NOTE 2 in clause 5.27.1.2.2.1 of 3GPP TS 23.501 [3].

gpsi

Gpsi

C

0..1

Identifies the UE/DS-TT which the parameters below apply.

n6Ind

boolean

C

0..1

Indicates the N6 termination which the parameters below apply.

ptpEnable

boolean

O

0..1

This is used to set the portDS.portEnable. If omitted, the default value as described in the PTP Profile is used

logSyncInter

integer

O

0..1

Specifies the mean time interval between successive Sync messages. This is applicable for IEEE Std 1588 [45] Boundary Clock or IEEE Std 802.1AS [46] operation. If omitted, the default value as described in the PTP Profile is used.

logSyncInterInd

boolean

O

0..1

When set to FALSE, the value of "logSyncInter" attribute is used to set the initialLogSyncInterval as described in IEEE Std 802.1AS [46]. When set to TRUE, the value of "logSyncInter" attribute is used to set the mgtSettableLogSyncInterval as described in IEEE Std 802.1AS [46].

If omitted, the default value as described in the IEEE Std 802.1AS [46] is used.

logAnnouInter

integer

O

0..1

Specifies the mean time interval between successive Announce messages. This is applicable for IEEE Std 1588 [45] Boundary Clock or IEEE Std 802.1AS [46] operation. If omitted, the default value as described in the PTP Profile is used.

logAnnouInterInd

boolean

O

0..1

When set to FALSE, the value of "logAnnouInter" attribute is used to set the initialLogAnnounceInterval as described in IEEE 802.1AS [46]. When set to TRUE, the value of "logAnnouInter" attribute is used to set the mgtSettableLogAnnounceInterval as described in IEEE Std 802.1AS [46].

If omitted, the default value as described in the IEEE Std 802.1AS [46 is used.

NOTE: Either "gpsi" or "n6Ind" attribute shall be included.

gpsi

Gpsi

M

1

Identifies the UE/DS-TT which the parameters below apply.

state

boolean

M

1

When the PTP port state is Leader, Follower or Passive, it is included and set to true to indicate the state of configuration for DS-TT port is active; when PTP port state is in any other case, it is included and set to false to indicate the state of configuration for DS-TT port is inactive. Default value is false.

NOTE: Leader and Follower terms in this specification are aligned with NOTE 2 in clause 5.27.1.2.2.1 of TS 23.501 [3].

ETH

Indicates Ethernet as defined in IEEE Std 1588 [45] Annex E is supported.

IPV4

Indicates IPv4 as defined in IEEE Std 1588 [45] Annex C is supported.

IPV6

Indicates IPv6 as defined in IEEE Std 1588 [45] Annex D is supported

GPTP

gPTP grandmaster is supported.

PTP

PTP grandmaste is supported.

AVAILABILITY_FOR_TIME_SYNC_SERVICE

The AF requests to be notified when the UE is availablility for time synchronization service.

BOUNDARY_CLOCK

Indicates Boundary Clock as defined in IEEE Std 1588 [45].

E2E_TRANS_CLOCK

Indicates End-to-End Transparent Clock as defined in IEEE Std 1588 [45].

P2P_TRANS_CLOCK

Indicates Peer-to-Peer Transparent Clock as defined in IEEE Std 1588 [45].

PTP_RELAY_INSTANCE

Indicates PTP Relay instance as defined in IEEE Std 802.1AS [46]

ATOMIC_CLOCK

Indicates atomic clock is supported.

GNSS

Indicates Global Navigation Satellite System is supported.

TERRESTRIAL_RADIO

Indicates terrestrial radio is supported.

SERIAL_TIME_CODE

Indicates serial time code is supported.

PTP

Indicates PTP is supported.

NTP

Indicates NTP is supported.

HAND_SET

Indicates hand set is supported.

INTERNAL_OSCILLATOR

Indicates internal oscillator is supported.

OTHER

Indicates other source of time is supported.

1

Notification_websocket

The delivery of notifications over Websocket is supported as defined in 3GPP TS 29.122 [4]. This feature requires that the Notification_test_event feature is also supported.

2

Notification_test_event

The testing of notification connection is supported as defined in 3GPP TS 29.122 [4].