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Content for  TR 22.844  Word version:  18.2.0

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5.8  Hosting network deployment for a temporary eventp. 22

5.8.1  Descriptionp. 22

A temporary Hosting Network A is set up at the mountain pass Col du Tourmalet in the French Pyrenees to support completion of the 14th stage of Tour de France. Hosting Network A is set up as a Standalone Private Network. A 3rd party service provider can lease this hosting network to provide the service (e.g. streaming video) to its users. The owner and operator of Hosting Network A can also be the operator of PLMN Network B, or the owner/operator of Hosting Network A can have a service agreement with PLMN Network B operator. According to the service agreement, PLMN Network B operator allows Hosting Network A operator to advertise services in the PLMN and solicit PLMN users to access the services provided by the hosting network for the temporary event. PLMN Network B's billing infrastructure can be utilized to charge the users for the service and the two operators can share the revenue generated by the service.
The users in PLMN Network B receive service advertisement over the PLMN, e.g. via SMS or broadcast information. If the users are interested and consent to use the service, they can request, over the PLMN, a temporary subscription to the hosting network and acquire network discovery/selection information (e.g. network identifier of the hosting network) and temporary credentials for accessing the hosting network. Based on the user's subscription and credit information with the PLMN Network B, the PLMN network can specify relevant service requirements, like QoS requirements and charging information (e.g. monetary or volume credit), for the service usage in the Hosting Network A. When the users are within the service area, the user can manually or automatically select the hosting network according to the acquired network discovery/selection information and access the network using the acquired temporary credentials in addition to the existing PLMN connection, or manually select to leave the existing PLMN connection to connect to the hosting network.
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5.8.2  Pre-conditionsp. 22

The operator of Hosting Network A has a service agreement with the operator of PLMN Network B.
The users of PLMN Network B don't have any subscription or configuration data for the temporary Hosting Network A.

5.8.3  Service Flowsp. 22

Step 1.
A PLMN user receives over its serving PLMN network a service advertisement of the event completion of the 14th stage of Tour de France. The service advertisement is broadcasted in the PLMN in a variety of ways such as SMS and system information.
Step 2.
The user consent to use the service and submit a request over the PLMN to obtain a temporary subscription to the Hosting Network and the service.
Step 3.
The PLMN network and the Hosting Network coordinate to generate the network access information and the temporary credentials for the user. The hosting network access information and the user's temporary credentials is delivered to the UE over the PLMN network.
Step 4.
During this process, the Hosting Network obtains the service requirements suggested by the PLMN and execute the requirements accordingly (e.g. selecting the proper slicing information and QoS rules) and also obtains the user's information for charging so it can charge the user through the PLMN.
Step 5.
During the time period that the service is available, and if the user is within the area where the service is available, the user can manually or automatically select the hosting network and access the hosting network using the obtained temporary credentials in addition to the existing PLMN connection, or manually select to leave the existing PLMN connection to connect to the hosting network.
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5.8.4  Post-conditionsp. 23

The user is able to enjoy the service provided by the hosting network.
The user device automatically discards the hosting network access information and temporary credentials after the event is over.

5.8.5  Existing features partly or fully covering the use case functionalityp. 23

Providing information to the user can be done on user plane with SMS, MMS etc.
From TS 22.261, clause 6.14.2:
Based on MNO and NPN policy, the 5G system shall support a mechanism to enable MNO to update the subscription of an authorized UE in order to allow the UE to connect to a desired NPN. This on-demand mechanism should enable means for a user to request on-the-spot network connectivity which is authorized by its MNO.
From TS 22.261, clause 6.18.2:
The 5G system shall enable users to obtain services from more than one network simultaneously on an on-demand basis.
For a user with a single operator subscription, the use of multiple serving networks operated by different operators shall be under the control of the home operator.
From TS 22.263, clause 5.6:
The 3GPP system shall be able to enable a UE to receive low-latency downlink multicast traffic from one network (e.g. NPN), and paging as well as data services from another network (e.g. PLMN) simultaneously.
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5.8.6  Potential New Requirements needed to support the use casep. 23

[PR.5.8.6-1]
The 5G system shall allow a network to coordinate with a hosting network to create temporary credentials for a subscriber for accessing the hosting network.
[PR.5.8.6-2]
A UE shall be able to automatically discover a hosting network based on received network access information. If the UE is able to obtain services from two networks simultaneously, it may automatically additionally select the hosting network. If the UE cannot maintain the connection to the PLMN while selecting the hosting network, the selection shall only be done on request by the user, i.e. using manual selection.
[PR.5.8.6-3]
The 5G system shall allow a UE to manually or automatically be disconnected from the hosting network and discard the hosting network access information and temporary credentials.
[PR.5.8.6-4]
The 5G system shall enable a mechanism for a hosting network to receive service requirements from the home PLMN network
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5.9  Regulatory requirements in a network providing access to localized servicesp. 23

5.9.1  Descriptionp. 23

This use case describes how a hosting network will have to provide regulatory services such as PWS, LI and emergency calls. Even though the hosting network may be a Non-Public Network, from a regulatory point of view it will be seen as a telecommunications network that provides services to the public.

5.9.2  Pre-conditionsp. 24

A football stadium is equipped with a hosting network. The network can support all kinds of services for spectators, fans, media production, security et cetera. Visitors to the stadium are provided with access to the network to get access to a host of different localized services aimed at fans/spectators. The hosting network with its excellent coverage and capacity in the stadium also provides access to non-localized operator services

5.9.3  Service Flowsp. 24

The popular band, V3 is on a worldwide tour. One of the venues on their tour is the Acme Arena, a football stadium that can hold 50.000 spectators. The concert is sold out, 50.000 fans are enjoying the show. They are also enjoying the localized services provided in the stadium. Via their mobile phones, they can receive an enhanced audio experience, get song text and other additional information, and chat with other fans in a fan-oriented social media application.
Unfortunately, there is an attempted terrorist attack during the pop concert. A member of the audience notices suspicious behaviour and makes an emergency call. The audience is then warned using PWS to evacuate part of the stadium. Because one of the terrorists was already a target for lawful intercept, law enforcement quickly found out that this terrorist was coordinating the attack with other persons, who were quickly apprehended.
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5.9.4  Post-conditionsp. 24

The situation in the stadium comes back to normal, thanks to timely response by law enforcement. This was made possible through the use of regulatory services (emergency calls, PWS, and LI).

5.9.5  Existing features partly or fully covering the use case functionalityp. 24

PWS, LI, and emergency calls are already defined for PLMNs.

5.9.6  Potential New Requirements needed to support the use casep. 24

[PR.5.9.6-1]
A hosting network using the 5G system shall be able to support regulatory services (e.g. PWS, LI, and emergency calls) when Providing Access to Localized Services to the public, based on regional/national regulatory requirements.

5.10  Proximate Resources Use Casep. 24

5.10.1  Descriptionp. 24

This use case explores the need to constrain both the location of network services for localized access as well as the timing of these services. The justification for the network is an 'event' which occurs in a particular place for a limited duration. What is more, the event offers different services which have different requirements, as there is more infrastructure involved than just the telecommunications network.
For this use case, we consider a fairground that includes an indoor and outdoor amphitheater. The events offered at this complex can include multimedia performances, with different events occurring at the same time at the two venues.
Copy of original 3GPP image for 3GPP TS 22.844, Fig. 5.10.1-1: The Proxima Performing Arts Complex
Figure 5.10.1-1: The Proxima Performing Arts Complex
(⇒ copy of original 3GPP image)
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5.10.2  Pre-conditionsp. 25

The Proxima Performing Arts Complex offers network infrastructure that can be used to host events. One network covers the entire facility, including the entry road (in case there is heavy traffic), the parking lot, registration pavilion and the two amphitheaters. The amphitheaters can be configured to allow specific network services in the immediate locality. The use for this specific spatial configuration will be illustrated in the use case below. Another resource provided by the Proxima Performing Arts Complex is a data center (with easy extensibility for customer equipment.) This allows the deployment of a Service Hosting Environment on the premises to enable low latency communication if needed by the performance technology.
This use case assumes interaction with the event organizers - to arrange specific space and time constraints, as well as procedures for allowing UEs of registered (paying) guests to gain access to the network. This could occur for example in the Pavillion - as one purchases a ticket, one is assisted with registration on the Proxima Performing Arts Complex network. Some specific equipment for spectators of the multimedia events is also supplied by the Arts Complex for use during the event.
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5.10.3  Service Flowsp. 25

Arnold parks his car and enters the Pavillion. As he pays for admission, he is able to configure his UE to gain access to the whole Proxima Performing Arts Complex. Arnold is issued a multimedia headset.
Arnold attends the Outdoor Amphitheater for a musical and dance performance. The audience can experience the dancers' performance as if each were in the front row. The realistic experience is only possible through the ultra-low latency communication between the audience members' devices and the servers in the Service Hosting Environment in Amphitheater 1.
At the same time, the indoor amphitheater provides a virtual pageant, where all the guests appear to be in costume (through augmented reality), roaming in a fanciful virtual architecture. There are separate smaller 'stages' in this amphitheater - depending on where the audience walks, they hear the performance of the musician they approach close enough to.
These two programs are extremely network intensive, with a sophisticated data center backstage. They operate simultaneously.
Later, performers are split between both stages and combined into a single concert for each amphitheater. This particular performance requires a single network to extend over both Amphitheaters with significant resources.
As Arnold leaves the event, he can continue to listen to the extended encore from his UE, as he returns to his car and exits the parking lot.
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5.10.4  Post-conditionsp. 25

For Arnold, the event provided a set of unique localized experiences, lasting for as long as the performance. For the performers, the network enabled them access to all the resources they needed (especially important in the later event, where the musicians performed on different stages in different buildings). The network reconfigured localized services according to the schedule.

5.10.5  Existing features partly or fully covering the use case functionalityp. 26

Void

5.10.6  Potential New Requirements needed to support the use casep. 26

[PR5.10.6-1]
The 5G System shall support a mechanism to enable configuration of a network that provides access to localized services such that the services can be limited in terms of their spatial extent (in terms of a particular topology, for example a single cell), as specified by a third party.
[PR5.10.6-2]
The 5G System shall support a mechanism to enable configuration of a network that provides access to localized services such that the services can be limited in terms of the resources or capacity available, to correspond to requirements that apply only to the locality of service delivery, as specified by a third party.
[PR5.10.6-3]
The 5G System shall support a mechanism to enable configuration of a network that provides access to localized services such that the services can be limited in terms of timing, as specified by a third party. This timing shall be flexible, so that a change in service provision can be decided at any time (e.g. to cancel or prolong local services in the locality of service delivery.)
[PR5.10.6-4]
The 5G System shall support a Service Hosting Environment in a network that provides access to localized services.
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5.11  Use Case of home network steering UEs to different localized service networksp. 26

5.11.1  Descriptionp. 26

There can be different local host networks in one location with overlapping coverage but for different localized services. A home network may establish business agreements with some or all of those local hosting network providers in that location, based on different user demands or other business considerations. Therefore, it can be desirable for the home network to be able to steer its UEs in certain location to different local host networks.

5.11.2  Pre-conditionsp. 26

Network A (NW-A) has a long-term business agreement with a local network B (NW-B) in city named Boring. Normally, when NW-A's UEs visit Boring, they connect to NW-B for connectivity service. In order to change the impression of being a boring city, Boring's city council decides to have a big city fair in their football stadium for 4 days. There will be multimedia shows and some famous internet video games being hosted locally in the stadium. Visitors can use their mobile devices to access those local services. The stadium decides to open-up its 5G private network as localized service network (NW-C) for that period of time to allow the authorized visitors to access those shows and games, as well as provide connectivity for other networks' UEs in that location. NW-C solicited the localized services to NW-A. Therefore, NW-A reaches agreement with this NW-C to have an option to allow its UEs to use NW-C's network in order to access the fair applications as well as other the connectivity service provided by NW-A during the period when NW-C provides localized service. NW-A may offer new subscription option to allow user to access the localized services provided by its partner.
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5.11.3  Service Flowsp. 26

Step 1.
Before the fair starting, NW-A's UEs only roam into NW-B automatically when they are in Boring.
Step 2.
When the fair starts, NW-A finds that the number of its UEs in Boring increase significantly and most of them are concentrating in that stadium area. This causes NW-B to be overloaded, which leads to the QoS deterioration of the NW-A's UEs in NW-B.
Step 3.
Because NW-A has signed e-agreement with NW-C to enable NW-A's UE to get connected to NW-C during this fair period, NW-A decides to steer some UE with the new localized service agreement from NW-B to NW-C.
Step 4.
NW-A selects and steers some of its UEs in the coverage of NW-C to switch from NW-B to NW-C. NW-A may have the capability to only steer the UEs which are in the good coverage of NW-C and also subscribed to use the localized services (e.g., playing the games in the stadium) in NW-C. For those NW-A UEs, which are in Boring city but not near the stadium or even in the coverage of NW-C but considered not suitable to steer to NW-C by NW-A (e.g., without the needed subscriptions), will continue to use NW- B.
Step 4a.
Jacob of NW-A who has subscribed the localized service is in the fair and playing an internet game with his friends using the game edge server in Boring. He found out that the game is also hosted locally in the fair, and his friends are connecting to the local server to get better performance. Therefore, even he may not get steering instruction from NW-A, Jacob decides to switch from NW-B to NW-C. After connecting to NW-C, Jacob's IP connection with the game edge server in Boring has been seamlessly moved to the local server in the stadium associated with NW-C.
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5.11.4  Post-conditionsp. 27

Some of NW-A's UEs in the stadium leave NW-B and connect with NW-C per the instructions from NW-A, without any user involvement and the services being interruption. NW-A's users who are in the fair are enjoying the multimedia shows and games using their smartphones connecting to NW-C, while other NW-A's UEs who are not in the fair or not interested in the fair will continue to access other services via NW-B with good QoS quality.
After the fair completes, all NW-A's UEs will continue to automatically select and use NW-B's network in Boring, even if stadium NW-C is still operating for its own users.
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5.11.5  Existing features partly or fully covering the use case functionalityp. 27

The existing service requirements for roaming users assume that roaming policies are in place for UEs to use their home network services.
TS 22.011, clause 3.2.2.8:
Steering of roaming allows the HPLMN to steer a UE to a VPLMN on which the HPLMN wants the UE to register, when the UE registers on another VPLMN. This capability may be needed for reasons e.g., reselection to a higher priority PLMN based on business arrangements.
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5.11.6  Potential New Requirements needed to support the use casep. 27

[PR.5.11.6-1]:
The 5G network shall be able to allow the home network to steer its UE(s) to a hosting network with the consideration of the location, times, coverage of the hosting network and services offered by the home network and hosting network.

5.12  Use case for Network selection based on application for localized servicesp. 27

5.12.1  Descriptionp. 27

A live concert with high-resolution video application service is provided with service provider A. A local hosting network A (e.g., NPN) is available and provides localized services for high-resolution video service of the concert. The high-resolution video streaming service of the live concert is only available to be accessed from the local edge server which can only be connected via the local hosting network A while a PLMN network B can offer the connection to normal video application service provided by the service provider A. Hosting network A and PLMN network B are two separate networks with no roaming agreement. The service provider A and the hosting network A can be the same party or they have a service agreement. Hosting network A can have a service agreement with PLMN Network B operator. According to the service agreement, PLMN Network B operator can configure the UE with a policy (e.g., UE policy) in order to allow the UE to connect to the hosting network A with high resolution video if the user selects high resolution video from the start. Alternatively, with the service agreement, PLMN Network B operator can instruct the UE to connect to the hosting network A with the exclusive access to the high-resolution video if the user selects high resolution video from normal video service. Charging of the service can be done via the PLMN Network B's billing infrastructure and the two operators can share the revenue generated by the service. The UE mentioned in the use cases below is a single radio UE without specific capability required.
The user may select to have the high-resolution video service from the start. The UE can be configured by the PLMN to have a UE policy (e.g., including a predefined time and a defined area) that instruct the UE to connect to the hosting network A for high-resolution video application service. The trigger for the UE policy configuration can be initiated by the service provider A who receives the request from application level that the user wants to watch high resolution video of the live concert. The user can watch the high-resolution video of the live concert after the UE automatically connect to the hosting network A.
Alternatively, the user may select the high-resolution video service while watching normal video service at the concert. The UE can be instructed by the PLMN to switch to hosting network A for the high-resolution video service. The instruction can be initiated by the service provider A who receives the request from application level that the user want to watch high resolution video of the live concert. The user can watch the high-resolution video of the live concert after the UE automatically connects to the hosting network A.
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5.12.2  Pre-conditionsp. 28

The service provider A has a service agreement with the operator of PLMN network B and the hosting network A.
The operator of hosting network A has a service agreement with the operator of PLMN network B.
The users of PLMN Network B have the subscription for the hosting network A.

5.12.3  Service Flowsp. 28

Use case A:
User selects the high-resolution video application service from the start.
Step 1.
A number of users use their UEs (e.g., smart phones) to buy tickets to the concert through the portal provided by service provider A before the concert.
Step 2.
The service provider A triggers the PLMN to configure the UE with a UE policy for the network selection for the high-resolution video application service of the concert.
Step 3.
After the start of the concert, users select to watch high-resolution video of the concert when they arrive the venue.
Step 4.
The UE identifies the information of hosting network A based on the mapping relation between the application service information and the network information (e.g., the identity of hosting network A) in the UE policy and search for the broadcasting message from the hosting network A.
Step 5.
UE connects to the hosting network A upon the receipt of the broadcast information, which contains the identity of hosting network A, from the hosting network A and gets access to the high-resolution video service of the concert.
Use case B:
User firstly watches normal video application service and triggers to watch high resolution video service.
Step 1.
A number of users buy tickets to the concert through the portal provided by service provider A before the concert.
Step 2.
After the start of the concert, user watches the normal video of the concert through PLMN and triggers to select the high-resolution video (e.g., with different selectable view angle of the concert) because the user may not satisfy with the normal video service of the concert.
Step 3.
The service provider A triggers the PLMN to instruct the UE to get connected to the hosting network A in order to get access to the high-resolution video service which is only available through the hosting network A.
Step 4.
UE connects to the hosting network A and gets access to the high-resolution video service of the concert.
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5.12.4  Post-conditionsp. 28

Users who select the high-resolution video service can enjoy their desired high-resolution video service of the live concert.

5.12.5  Existing features partly or fully covering the use case functionalityp. 29

N/A

5.12.6  Potential New Requirements needed to support the use casep. 29

[PR.5.12.6-1]
The 5G system shall enable a service provider to request the home network to instruct a UE under which conditions (e.g. predefined time, location) it could select a certain hosting network.
[PR.5.12.6-2]
5G system shall enable the home network to instruct a UE to automatically select a hosting network for accessing localized services when specified conditions (e.g. predefined time, location) are fulfilled.

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