Location information of VAL service user shall be provided by the location management client of one UE to the location management client of another UE. The location information reporting triggers are based on the location reporting configuration. Different type of location information can be provided e.g. retrieved from non-3GPP source.
Table 9.5.2.1-1 describes the information flow from the location management client-1 to the location management client-2 for the off-network location reporting configuration.
Identity of the VAL user to which the location reporting configuration is targeted or identity of the VAL UE.
Requested location information
M
Identifies what location information is requested
List of triggering criteria(s)
M
One or more triggering criteria that identifies when the location management client will send the location report. Each triggering criteria is identified by trigger-id.
Minimum time between consecutive reports
O
Defaults to 0 if absent otherwise indicates the time interval between consecutive reports
Life Time of the configuration
O
Time till when location report configurations are valid.
Table 9.5.2.2-1 describes the information flow from the location management client-2 to the location management client-1 for the off-network location reporting configuration response. The Off-network location reporting trigger configuration response acts as an acknowledgement to the location management client-1.
The Off-network location management ack message is sent from the message receiver location management client-2 to message originator location management client-1.
Table 9.5.2.4-1 describes the information flow from the location management client-2 to the location management client-1 for the off-network location report.
Table 9.5.2.5-1 describes the information flow from the location management client-1 to the location management client-2 for the off-network location reporting trigger cancel.
Table 9.5.2.6-1 describes the information flow from the location management client-2 to the location management client-1 for the off-network location reporting cancel response. The Off-network location reporting trigger cancel response acts as an acknowledgement to the location management client-1.
Table 9.5.2.7-1 describes the information flow from the location management client-1 to the location management client-2 for the off-network location request.
Table 9.5.2.8-1 describes the information flow from the location management client-2 to the location management client-1 for the off-network location response. The Off-network location response acts as an acknowledgement to the location management client-1.
Figure 9.5.3.1-1 illustrates the procedure for configuring location reporting triggers from the location management client-1 residing in UE-1 to the location management client-2 residing in UE-2.
Pre-condition:
The UE-1 and UE-2 are within PC5 communication range of each other, and aware of Layer-2 ID of each other.
The VAL service user in UE-1 is authorized to configure location reporting trigger to the UE-2.
The VAL service user in UE-1 requests to configure location reporting triggers to the UE-2.
The location management client-1 in UE-1 sends off network location reporting trigger configuration message to the location management client-2 in UE-2 containing the initial location reporting event triggers configuration (or a subsequent update) for reporting the location of the VAL UE. The message includes information elements as specified in Table 9.5.2.1-1.
The location management client-2 stores the location reporting configuration, and sends off network location reporting trigger configuration response to the location management client-1. The message includes information elements as specified in Table 9.5.2.2-1.
Upon receiving the off network location reporting trigger configuration response message, the location management client-1 sends off-network location management ack messages. The message includes information elements as specified in clause 9.5.2.3.
Figure 9.5.3.2-1 illustrates the procedure for sending off-network location report from the location management client-2 residing in UE-2 to the location management client-1 residing in UE-1.
Pre-condition:
The UE-1 and UE-2 are within PC5 communication range of each other, and aware of Layer-2 ID of each other.
The location management client-1 has previously configured off-network location reporting triggers to the location management client-2 as specified in clause 9.5.3.1.
The location management client-2 sends the off-network location report message. The message includes information elements as specified in Table 9.5.2.4-1.
Upon receiving the off network location report message, the location management client-1 sends the off-network location management ack message if requested in the received message. The message includes information elements as specified in clause 9.5.2.3.
Figure 9.5.3.3-1 illustrates the procedure for sending off-network location reporting trigger cancel from the location management client-1 residing in UE-1 to the location management client-2 residing in UE-2.
Pre-condition:
The UE-1 and UE-2 are within PC5 communication range of each other, and aware of Layer-2 ID of each other.
The location management client-1 has previously configured location reporting triggers to the location management client-2 as specified in clause 9.5.3.1.
The location management client-1 in UE-1 sends off network location reporting trigger cancel message to the location management client-2 in UE-2 to cancel the location reporting trigger configuration. The message includes information elements as specified in Table 9.5.2.5-1.
The location management client-2 clears the location reporting configuration, and sends off network location reporting trigger cancel response to the location management client-1. The message includes information elements as specified in Table 9.5.2.6-1.
Upon receiving the off network location reporting trigger configuration response message, the location management client-1 sends off-network location management ack message. The message includes information elements as specified in clause 9.5.2.3.
Figure 9.5.4-1 illustrates the procedure for on-demand location report from the location management client-1 residing in UE-1 to the location management client-2 residing in UE-2.
Pre-condition:
The UE-1 and UE-2 are within PC5 communication range of each other, and aware of Layer-2 ID of each other.
The VAL service user in UE-1 is authorized to request location report from the UE-2.
The VAL service user in UE-1 requests immediate location reporting to the UE-2.
Based on configurations such as periodical location information timer the location management client-1 initiates the immediately request location information from the location management client-2. The location management client sends an off-network location request to the location management client-2. The message includes information elements as specified in Table 9.5.2.7-1.
The location management client-2 immediately responds to the location management client-1. If permission is received from the VAL user, the location management client-2 includes a report containing location information identified by the location management client-1 and available to the location management client-2. The message includes information elements as specified in Table 9.5.2.8-1.
Upon receiving the off network location reporting trigger configuration response message, the location management client-1 sends off-network location management ack message. The message includes information elements as specified in clause 9.5.2.3.