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Content for  TS 23.434  Word version:  19.2.0

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9.3  Procedures and information flows for Location management (on-network)p. 50

9.3.1  Generalp. 50

Location information of VAL service user shall be provided by the location management client to the location management server. The location information reporting triggers are based on the location reporting configuration. Different type of location information can be provided.

9.3.2  Information flows for location informationp. 50

9.3.2.0  Location reporting configuration requestp. 50

Table 9.3.2.0-1 describes the information flow from the location management client to the location management server for requesting the location reporting configuration.
Information Element Status Description
IdentityMIdentity of the VAL user or identity of the VAL UE
VAL service IDOIdentity of the VAL service for which the location reporting configuration is requested.
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9.3.2.1  Location reporting configuration responsep. 50

Table 9.3.2.1-1 describes the information flow from the location management server to the location management client for the location reporting configuration. This information flow may be sent individually addressed or group addressed on unicast or multicast.
Information Element Status Description
IdentityMIdentity of the VAL user or VAL group to which the location reporting configuration is targeted or identity of the VAL UE
Requested location informationO
(see NOTE 1)
Identifies what location information is requested
Requested location access type
(see NOTE 2)
O
(see NOTE 1)
Identifies the location access type for which the location information is requested, e.g. as described in TS 23.273 and TS 29.572.
Requested positioning methodO
(see NOTE 1)
Identifies the positioning method for which the location information is requested, e.g. as described in TS 23.273 and TS 29.572.
Triggering criteriaO
(see NOTE 1)
Identifies when the location management client will send the location report as specified in Table 9.3.2.4-2. The triggering may be e.g., SAI changes, ECGI changes, RAT changes.
Minimum time between consecutive reportsO
(see NOTE 1)
Defaults to 0 if absent otherwise indicates the time interval between consecutive reports
NOTE 1:
If none of the information element is present, this represents a cancellation for location reporting.
NOTE 12:
The non-3GPP access as defined in 23.273[50] and TS 29.572 is out of scope of the present specification.
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9.3.2.2  Location information reportp. 51

Table 9.3.2.2-1 describes the information flow from the location management client to the location management server for the location information reporting or from the location management server to the requesting location management client or VAL server to report location information.
Information Element Status Description
Set of identitiesMSet of identities of the reporting VAL users or VAL UEs
Triggering eventMIdentity of the event that triggered the sending of the report. The triggering event may be e.g., SAI changes, ECGI changes, RAT changes.
Location InformationMLocation information. For LM-UU reference point, it may include UE location information via non-3GPP positioning technologies (e.g. GNSS, Sensor, TBS, WLAN, Bluetooth) as described in TS 37.355.
TimestampOTimestamp of the location report
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9.3.2.3  Location information requestp. 51

Table 9.3.2.3-1 describes the information flow from the VAL server to the location management server and/or from the location management server to the location management client for requesting an immediate location information report.
Information Element Status Description
Identity listMList of VAL users or VAL UEs whose location information is requested
VAL service IDOIdentity of the VAL service for which the location information is requested.
Requested location informationOIdentifies what location information is requested
Requested location access type
(NOTE 4)
O
(NOTE 1)
Identifies the location access type for which the location information is requested, e.g. as described in TS 23.273 and TS 29.572.
Requested positioning methodO
(NOTE 1)
Identifies the positioning method for which the location information is requested, e.g. as described in TS 23.273 and TS 29.572.
Location QoSO
(NOTE 3)
Definition of the location Quality of Service for which the location information is requested (see NOTE 2).
NOTE 1:
This element is only applicable for request sent from the LM server to the LM client.
NOTE 2:
The definition of location QoS has been defined in clause 4.1b of TS 23.273 and the clause 6.1.6.2.13 of TS 29.572.
NOTE 3:
The element is only applicable for the information flow from the VAL server to the location management server.
NOTE 4:
The non-3GPP access as defined in TS 23.273 and TS 29.572 is out of scope of the present specification.
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9.3.2.4  Location reporting triggerp. 51

Table 9.3.2.4-1 describes the information flow from the location management client or VAL server to the location management server for triggering a location reporting procedure.
Information Element Status Description
Requestor IdentityM
(see NOTE 1)
Identity of the requesting authorized VAL user or VAL UE or VAL server
IdentityM
(see NOTE 1)
Identity of the requested VAL user or VAL UE
VAL service IDOIdentity of the VAL service for which the location reporting trigger is set.
Immediate Report IndicatorO
(see NOTE 2)
Indicates whether an immediate location report is required
Requested location informationO
(see NOTE 2)
Identifies what location information is requested. This information element may be represented as VAL service area ID(s) when this information flow from VAL server to the location management server.
Triggering criteriaO
(see NOTE 2)
Identifies when the requesting client/VAL server is expecting to receive the location report from the requested VAL user/ VAL UE as specified in Table 9.3.2.4-2.
Minimum time between consecutive reportsO
(see NOTE 2)
Defaults to 0 if absent otherwise indicates the interval time between consecutive reports
Endpoint informationOInformation of the endpoint of the requesting VAL server to which the location report notification has to be sent. It is provided if Immediate Report Indicator is set to required.
NOTE 1:
The identity of the requesting VAL user/UE/VAL server and the requested VAL user/UE should belong to the same VAL service.
NOTE 2:
At least one of these rows shall be present.
Information element Status Description
Frequency of reportingOIt indicates the requested frequency of reporting. The reporting frequency may be periodic or event-triggered.
Reporting periodicityOIf the Frequency of reporting is periodic, the reporting periodicity shall be provided.
Location change conditionO
(see NOTE)
It indicates the location change condition when the reporting shall occur, e.g., VAL user or VAL UE changes a cell, NodeB, TA, RA, WLAN access network, civic address, GPS coordinates, SAI, ECGI, RAT, VAL service area.
If the Frequency of reporting is event-triggered, this IE shall be provided.
Inside or outside indicationO
(see NOTE)
It indicates the condition when the reporting shall occur, i.e., the VAL user or VAL UE is inside or outside the locations represented by the VAL service area ID(s).
Reporting scheduleOIt indicates the requested reporting schedule, e.g., days of the week and/or time period for the location reporting.
NOTE:
Triggering criteria based on the VAL service area represented by the VAL service area ID(s) may be provided when this information flow is from the VAL server to the location management server.
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9.3.2.5  Location information subscription requestp. 52

Table 9.3.2.5-1 describes the information flow from the VAL server or location management client to the location management server for location information subscription request or for updating an existing location information subscription.
Information Element Status Description
IdentityMIdentity of the requesting VAL server/VAL user or VAL UE (see NOTE 3).
Identities listMList of VAL users or VAL UEs whose location information is requested.
VAL service IDOIdentity of the VAL service for which the location information is subscribed.
Time between consecutive reportsMIt indicates the interval time between consecutive reports.
Supplementary location information indicationOIndicates that supplementary location information is required.
Location QoSO
(NOTE 2)
Definition of the location Quality of Service for which the location information is requested (see NOTE 1).
NOTE 1:
The definition of location QoS has been defined in clause 4.1b of TS 23.273 and the clause 6.1.6.2.13 of TS 29.572.
NOTE 2:
The element is only applicable for the information flow from the VAL server to the location management server.
NOTE 3:
This information element shall not be updated via location information subscription update procedure in clause 9.3.2.7a.
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9.3.2.6  Location information subscription responsep. 53

Table 9.3.2.6-1 describes the information flow from the location management server to the VAL server or location management client for location information subscription response or location information subscription update response.
Information Element Status Description
IdentityMIdentity of the requesting VAL server/VAL user or VAL UE
Subscription statusMIt indicates the subscription result
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9.3.2.7  Location information notificationp. 53

Table 9.3.2.7-1 describes the information flow from the location management server to the VAL server or the location management client.
Information Element Status Description
Identities listMList of the VAL users or VAL UEs whose location information needs to be notified
Identity (see NOTE 2)OIdentity of the VAL user or VAL UE subscribed to location of another VAL user or VAL UE (see NOTE 1)
Subscription ID (see NOTE 2)OSubscription identity related to VAL server subscription with Location management server for location information notification.
Triggering eventMIdentity of the event that triggered the sending of the notification
Location InformationMLocation information
TimestampOTimestamp of the location report
NOTE 1:
This is only used for location management server sends location information notification to the VAL user or VAL UE who has subscribed the location.
NOTE 2:
Either Identity or Subscription ID shall be included.
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9.3.2.7a  Location information subscription update procedure |R18|p. 54

Figure 9.3.2.7a-1 illustrates the high level procedure for allowing a VAL server update an existing subscription about location information at the location management server.
Pre-conditions:
  • the VAL server has an active location information subscription at the location management server.
Reproduction of 3GPP TS 23.434, Fig. 9.3.2.7a-1: Location information subscription update procedure
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Step 1.
When the VAL server decides to update an active location information subscription, it sends a location information subscription update request to the location management server including the information specified in Table 9.3.2.5-1.
Step 2.
The location management server shall check if the VAL server is authorized to update the subscription.
Step 3.
If the VAL server is authorized to update the subscription, the location management server updates the location information subscription.
Step 4.
The location management server sends a location information subscription update response to the VAL server including the information as specified in Table 9.3.2.6-1.
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9.3.2.8  Location reporting configuration cancel requestp. 54

Table 9.3.2.8-1 describes the location reporting configuration cancel request information flow from the location management client or VAL server to the location management server or from the location management server to the location management client.
Information Element Status Description
IdentityMIdentity of the requesting authorized VAL user or VAL UE or VAL server
IdentityMIdentity of the requested VAL user or VAL UE
VAL service IDOIdentity of the VAL service for which the location reporting configuration is requested to be cancelled.
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9.3.2.9  Get UE(s) information request |R17|p. 54

Table 9.3.2.9-1 describes the information flow for a VAL server to get UE(s) information at the LM server.
Information Element Status Description
Location informationMLocation information around which the UE(s) information is requested (e.g. geographic area or VAL service area ID).
Application defined proximity range informationMDescription of the range information over which the UE(s) information is required.
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9.3.2.10  Get UE(s) information response |R17|p. 55

Table 9.3.2.10-1 describes the information flow for a LM server to respond with UE(s) information to the VAL server.
Information Element Status Description
ResultMResult from the VAE server in response to subscription request indicating success or failure
List of UEs information (see NOTE)OThe information of the UEs which were detected in the application defined proximity range. The list can be empty.
> UE IDMThe identifier of VAL UE or VAL user.
> Location informationMLocation information of UE within the application defined proximity range
NOTE:
This IE shall be included when the Result indicates success.
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9.3.2.11  Monitor Location Subscription Request |R17|p. 55

Table 9.3.2.11-1 describes the information flow from the VAL server to the LM server for monitoring the location deviation of the VAL UE(s) or for updating an existing monitor location subscription.
Information Element Status Description
IdentityMIdentifier of the VAL users or VAL UE whose location monitoring is requested to be monitored in a given location (see NOTE).
Area of InterestMGeographic area location information where the VAL server wishes to monitor the VAL UE's location adherence. This could be geographical co-ordinates or VAL service area identified by the VAL service area ID.
Notify IntervalMPeriodic time interval in which the LM server needs to notify the VAL UE's location information to the VAL server.
Notification Target URIMTarget URI where the VAL server wishes to receive the notifications about VAL UE's location.
TimeoutOA timeout period when subscription response is not received.
NOTE:
This information element shall not be updated via monitor location subscription update procedure in clause 9.3.2.12a.
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9.3.2.12  Monitor Location Subscription Response |R17|p. 55

Table 9.3.2.12-1 describes the information flow from LM server to the VAL server for Monitor Location Subscription Response or monitor location subscription update response.
Information Element Status Description
Subscription statusMIt indicates the subscription result
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9.3.2.12a  Monitor location subscription update procedure |R18|p. 56

Figure 9.3.2.12a-1 illustrates the high level procedure for allowing a VAL server update an existing monitor location subscription at the location management server.
Pre-conditions:
  • the VAL server has an active monitor location subscription at the location management server.
Reproduction of 3GPP TS 23.434, Fig. 9.3.2.12a-1: Monitor location subscription update procedure
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Step 1.
When the VAL server decides to update an active monitor location subscription, it sends a monitor location subscription update request to the location management server including the information specified in Table 9.3.2.11-1.
Step 2.
The location management server shall check if the VAL server is authorized to update the subscription.
Step 3.
If the VAL server is authorized to update the subscription, the location management server updates the monitor location subscription.
Step 4.
The location management server sends a monitor location subscription update response to the VAL server including the information as specified in Table 9.3.2.12-1.
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9.3.2.13  Notify Location Monitoring Event |R17|p. 56

Table 9.3.2.13-1 describes the information flow from LM server to the VAL server for notification of location monitoring events.
Information Element Status Description
EventM Information of the event to be reported. The event shall be one of the following:
"Notify_Mismatch_Location" - When the location information of the VAL UE, from the location management client and the core network do not match, or when the LM server determined area of interest result based on LM client location and the core network reported area of interest result do not match.
"Notify_Absence" - When the VAL UE's current location is deviating from the VAL server's area of interest information.
"Notify_Presence" - When the VAL UE's current location is within the VAL server's area of interest information.
IdentityMIdentifier of the VAL UE whose location information is reported.
LocationMCurrent location of the VAL UE.
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9.3.2.14  Location area monitoring subscription request |R17|p. 57

Table 9.3.2.14-1 describes the information flow from the VAL server to the location management server for location area monitoring subscription request.
Information Element Status Description
IdentityMIdentity of the requesting VAL server, VAL UE or SEAL Server.
Location Information criteriaMLocation information to be monitored.
It includes the geographic location information or a VAL service area identified by the VAL service area ID or a reference UE along with the application defined proximity range from the reference UE.
Time between consecutive reportsOIt indicates the interval time between consecutive reports.
Immediate Report IndicatorOIndicates whether an immediate location report is required.
Triggering eventsOIdentifies when the server will send the notification (e.g. distance travelled).
Notification Target URIMTarget URI where the VAL server wishes to receive the notifications about location area monitoring.
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9.3.2.15  Location area monitoring subscription response |R17|p. 57

Table 9.3.2.15-1 describes the information flow from the location management server to the VAL server for location area monitoring subscription response.
Information Element Status Description
Subscription statusMIt indicates the subscription result
Subscription identityO
(see NOTE)
If subscription is successful, identifies the subscription
NOTE:
This IE shall be present if subscription status is set to success.
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9.3.2.16  Location area monitoring notification |R17|p. 58

Table 9.3.2.16-1 describes the information flow from the location management server to the VAL server.
Information Element Status Description
Subscription identityMIdentity of the subscription
UEs currently present
(see NOTE)
OList of the identities of all VAL UEs who are currently present in the given location area
UEs moved in/out
(see NOTE)
OList of UEs either moved in to the location area or moved out of the location area
>> UEs moved inOList of the identities of the VAL UEs who moved in to the given location area since previous notification.
>> UEs moved outOList of the identities of the VAL UEs who moved out of the given location area since previous notification.
Triggering eventOIdentity of the event that triggered the sending of the notification
NOTE:
Any one of these shall be present.
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9.3.2.17  Location area monitoring subscription modify request |R17|p. 58

Table 9.3.2.17-1 describes the information flow from the VAL server to the location management server for location area monitoring subscription modify request.
Information Element Status Description
IdentityMIdentity of the requesting VAL server, VAL UE or SEAL Server.
Subscription identityMIdentifies the subscription
Location Information criteriaMLocation information to be monitored. It includes the geographic location information or a VAL service area ID or a reference UE along with the application defined proximity range from the reference UE.
Time between consecutive reportsOIt indicates the interval time between consecutive reports.
Immediate Report IndicatorOIndicates whether an immediate location report is required.
Triggering eventsOIdentifies when the server will send the notification (e.g. distance travelled).
Notification Target URIMTarget URI where the VAL server wishes to receive the notifications about location area monitoring.
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9.3.2.18  Location area monitoring subscription modify response |R17|p. 58

Table 9.3.2.18-1 describes the information flow from the location management server to the VAL server for location area monitoring subscription modify response.
Information Element Status Description
Subscription modification statusMIt indicates the request result
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9.3.2.19  Location area monitoring unsubscribe request |R17|p. 58

Table 9.3.2.19-1 describes the information flow from the VAL server to the location management server for location area monitoring unsubscribe request.
Information Element Status Description
IdentityMIdentity of the requesting VAL server, VAL UE or SEAL Server
Subscription identityMIdentifies the subscription
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9.3.2.20  Location area monitoring unsubscribe response |R17|p. 59

Table 9.3.2.20-1 describes the information flow from the location management server to the VAL server for location area monitoring unsubscribe response.
Information Element Status Description
Request statusMIt indicates the request result
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