For the purposes of the present document, the terms and definitions given in TR 21.905 apply.

For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905. GNSS

In order to find a missing child in a kidnapping case, a detective is charged with the observation of the suspect. A small UE with a GNSS receiver is attached to the suspect's car. It periodically sends location reports, which then are used to create a movement profile. The timestamp in the location report allows associating the coordinates with the right time the position was determined. The analysis of the profile finally leads to the hideout, which the child is locked in.

The control room of a greater city responsible for the coordination of all the city's ambulances uses frequent location reports from the UEs of the ambulance fleet based on both the travelled distance and the elapsed time, to be able to assign the nearest located car as fast as possible in case an emergency occurs. As the city has many tunnels and the cars often lose their GNSS signals when heading through, additional information like speed and direction of travel is used to estimate the current location and continue displaying on the dispatcher's map.

After chasing a pickpocket through the inner city without success, a police officer is missing his UE. Back at the patrol car he briefs his colleague and they inform the control room about the situation. The UE will be temporarily disabled to be on the safe side and the dispatcher sends them the current location of the lost UE acquired by an on-demand location report. The coordinates delivered by the UE are not very accurate, because it fell out of the officer's pocket under a steel stair in a dark corner without free sight. Using the accuracy information displayed as ellipse around the coordinates the officers know which area they have to look for and are able to find the UE after a while.

Two mountaineers initiate emergency, because they have lost orientation due to nightfall and have run into difficult terrain. They cannot answer the question where they actually are. The only information they can provide is the name of the route on which they wanted to ascend. Both a helicopter is sent and a ground team is composed to do the ascension. The helicopter is able to find the two mountaineers after a while, but the terrain is unsuitable for a rescue operation from the helicopter. Therefore, the pilot sends his location information to the rescue team on the ground. Beyond longitude and latitude, the altitude information helps the team to assess the position of the mountaineers and how long they will take to get to them.

A child is missing and an extensive search with several hundred police officers is ongoing. Due to an unknown technical failure location information from 12 police officers is not available at the overlooking dispatcher. The dispatcher is observing the search on a large scale map with live location information from involved police officers. It is obvious, that a region is currently not searched by any police officer, because no location information is available for this region. After the technical problem is solved all not yet transmitted location information is transmitted as bulk to the dispatcher and remaining gaps are filled. The dispatcher is able to concentrate the search at other regions and is therefore avoiding the waste of valuable time.

In preparation of an operation to liberate some people who have been taken as hostages by terrorists and are now held captive in a building complex, it is arranged that if anything goes wrong, the members of the special unit shall initiate emergency and try to head to a specific safe area. The entering of this area is defined as triggering criteria in emergency cases for sending a location report and the UEs are configured with it. When receiving the location report the overlooking dispatcher knows which unit in emergency has reached the safe area. He can cancel the emergency alert of this safe unit and concentrate the rescue efforts to the other units still in emergency. This approach is chosen in preference over the simple deactivation of the emergency state by the units themselves, because it is feared that the units could maybe be captured and manipulated by the terrorists.

First responder Jorge is on his day shift and has therefore his personal cell phone with a special mission critical app in use. In parallel the official mission critical smart phone along with the health tablet and the ambulance car onboard system. All four devices can be used with one single mission critical ID, which offer voice, short messages and location information. In his current state all four devices report with defined triggers location information to the critical mission control room, but the control room is not able to distinguish between these location information. Jorge requested additional support. In order to send support to Jorge the estimated center of these four location information is used together with the associated inaccuracy. The support arrives at the wrong location and can't find Jorge. By selecting just the mission critical smart phone from which Jorge is currently talking the dispatcher can coordinate the support to the building across the street and around the corner.

Fire fighter Isabella is using on duty her official mission critical UE along with a pager, but now she is on standby and both devices are active. The dispatcher is receiving location information from both devices, but is not able to make the connection between location information received and devices. In standby all fire fighters have to carry their pager all the time. Therefore the dispatcher is able to request the location information of her pager by selecting this device and sending the proper request, which is acknowledged with the location of Isabella. The dispatcher is able to make the right judgment to leave her in standby or based on her location to include her to the nearby car accident with engine oil on the street.

A first responder car is blocking the street as well as parked cars due to an elderly person requiring oxygen after a small kitchen fire. While Inés is providing support, Miguel is at the first responder's car for additional medication. In this moment the owner of a blocked car is demanding the removal of the first responder's car, because of his very important meeting. Miguel is not paying attention to the arguing person. The working procedure in such circumstances requires emergency support and Miguel is pressing the red button on his voice communication device. The location information of this emergency call is reaching the emergency dispatcher and is shared with the city owned video processing system which is not under the same organisation as Miguel. Based on this location information video footage is selected and automatically provided. Therefore, the dispatcher of his organisation receives live footage of two stationary cameras of a different organisation observing the area. The dispatcher sees Miguel, the first responder's car as well the person arguing with Miguel. The dispatcher is warning Miguel, who is currently inside the first responder's car, about a shiny object the person is pulling from his pocket. The in parallel immediately requested police support is able to avoid a dangerous situation for Miguel and the elderly person.

Police officer George just started his shift at an outpost. His colleague Margaret is very nervous and instantly sends him to an emergency, which she just got from the dispatcher for this region. George hurries up, powers on his UE and leaves to his car. He doesn't manage to log on to the MC service providing his MC ID, but the UE is already registered to the SIP core. George drives with high speed to get to the emergency scene as soon as possible. Suddenly, a cat appears on the road in front of him and he leaves the road accidentally. His car has gone head over heels and now lays in a hardly visible ditch, whereas George has lost his consciousness. The dispatcher gets nervous as he is not able to reach George and decides to send help to him. He alerts George's colleague in the outpost. While Margaret drives along the road, the dispatcher directly requests location information from George's UE and transfers it to Margaret. Margaret arrives at George's accident location and gives first aid. George can be rescued, but not a moment too soon.

An upcoming match between two rival soccer clubs requires a large-scale operation, because the fans of these two clubs have come to the notice several times in terms of violence in the past. In order to ensure the security of the event, patrols in the whole city are expanded and the fans of the soccer clubs are observed and controlled by unit A as early as they arrive at the station and head for the stadium. For tactical and capacitive reasons the police officers of unit B securing the stadium communicate with their officer in charge in off-network operation and the officer in charge communicates with the other units and gets information from them. The unit responsible for the security in and around the stadium communicates within a dedicated off-network group and the group members are configured to report their location information periodically to the authorized officer in charge, who has an overview of the crowded stadium and needs this information to coordinate the operation and to be able to react as fast and efficient as possible to disturbances or violence in the stadium.

A dispatcher at City Centre is responsible for 1200 police officers and is receiving periodic location information, due to location information subscriptions to all police officers under the supervision of this dispatcher location. Due to a failure the dispatcher at City East, which is part of the same MC system, has to take over. This dispatcher is able to subscribe for periodic location information as well as to request location information of 48 police officers of the special task force for the past 24 hours.

Daan a police officer of The Police of the Netherlands is coordinating a joint mission on opioid and drug smuggling with forces in Germany and Belgium. Each country is providing 5 members of a special task force. In order to coordinate the mission, Daan has subscribed to the location information of each member of the joint team, with the possibility to temporarily adjust the configuration for the periodic location information as well as in case of an emergency. Daan is able to see location updates based on the temporary configuration. After the operation has been concluded, Daan removes the temporary changes, which reverts each team member to their original location reporting configuration.