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full Contents for  TS 22.261  Word version:   17.2.0

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6.26  5G LAN-type service [R16]
6.26.1  Description
5G expands the scope and reach of 3GPP-defined technologies. There are multiple market segments in the realm of residential, office, enterprise and factory, where 5G will need to provide services with similar functionalities to Local Area Networks (LANs) and VPN's but improved with 5G capabilities (e.g. high performance, long distance access, mobility and security).
6.26.2  RequirementsWord-p. 40
6.26.2.1  General
The 5G system shall support 5G LAN-type service in a shared RAN configuration.
The 5G system shall support 5G LAN-type service over a wide area mobile network.
The 5G network shall support service continuity for 5G LAN-type service, i.e. the private communication between UEs shall not be interrupted when one or more UEs of the private communication move within the same network that provides the 5G LAN-type service.
The 5G system shall support use of unlicensed as well as licensed spectrum for 5G LAN-type services.
The 5G system shall enable the network operator to provide the same 5G LAN-type service to any 5G UE, regardless of whether it is connected via public base stations, indoor small base stations connected via fixed access, or via relay UEs connected to either of these two types of base stations.
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6.26.2.2  5G LAN-virtual network (5G LAN-VN)
A UE shall be able to select a 5G LAN-VN, that the UE is a member of, for private communications.
A 5G system shall support 5G LAN-VNs with member UEs numbering between a few to tens of thousands.
The 5G LAN-VN shall support member UEs that are subscribed to different PLMNs, e.g. a 5G LAN-VN may span multiple countries and have member UEs that have a subscription to a PLMN in their home country.
The 5G system shall support on-demand establishment of UE to UE, multicast, and broadcast private communication between members UEs of the same 5G LAN-VN. Multiple types of data communication shall be supported, at least IP and Ethernet.
The 5G network shall ensure that only member UEs of the same 5G LAN-VN are able to establish or maintain private communications among each other using 5G LAN-type service.
The 5G system shall allow member UEs of a 5G LAN-VN to join an authorized multicast session over that 5G LAN-VN.
The 5G system shall be able to restrict private communications within a 5G LAN-VN based on UE's location (i.e. when the UE moves out of the area it can no longer communicate on the 5G LAN-VN).
The 5G network shall enable member UEs of a 5G LAN-VN to use multicast/broadcast over a 5G LAN-type service to communicate with required latency (e.g. 180ms).
The 5G system shall support a mechanism to provide consistent QoE to all the member UEs of the same 5G LAN-VN.
The 5G system shall support routing based on a private addressing scheme within the 5G LAN-VN.
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6.26.2.3  Creation and management
The 5G network shall enable the network operator to scale up/down a 5G LAN-VN, e.g. the coverage, capacity for efficient consumption of network resources.
The 5G network shall enable the network operator to create, manage, and remove 5G LAN-VN including their related functionality (subscription data, routing and addressing functionality).
The 5G network shall enable the network operator to add one or more authorized UEs to an existing 5G LAN-VN.
NOTE 1:
A UE needs to be authorized by the MNO to use 5G LAN-type service before it can be added to any 5G LAN-VN.
NOTE 2:
some use cases will require user permission for a UE to be added to a 5G LAN-VN.
The 5G system shall enable the network operator to add an authorized UE to multiple independent 5G LAN-VNs.
The 5G network shall enable the network operator to remove one or more UEs from an existing 5G LAN-VN.
NOTE 3:
Removing a UE from a 5G LAN-VN does not have impact on other 5G LAN-VNs that the UE is a member of.
The 5G system shall enable the network operator to configure a 5G LAN-VN that is available only within a geographical area.
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6.26.2.4  PrivacyWord-p. 41
The 5G system shall be able to prevent the sharing of a UE's identifying information (e.g. SUPI, MSISDN) on private communication among UEs using 5G LAN-type service.
6.26.2.5  Traffic types
A 5G system shall support all media types (e.g. voice, data, multimedia) for 5G LAN-type service.
The 5G system shall support traffic scenarios typically found in a home setting (from sensors to video streaming, relatively low amount of UEs per group, many devices are used only occasionally) for 5G LAN-type service.
The 5G system shall support traffic scenarios typically found in an office setting (from sensors to very high data rates e.g. for conferencing, medium amount of UEs per group) for 5G LAN-type service.
The 5G system shall support traffic scenarios typically found in an industrial setting (from sensors to remote control, large amount of UEs per group) for 5G LAN-type service.
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6.26.2.6  Discovery
The 5G system shall enable a member UE to discover other member UEs within the same 5G LAN-VN.
The 5G LAN-type service shall be able to support existing non-3GPP service discovery mechanisms (e.g. mechanisms to discover printers).
6.26.2.7Void
6.26.2.8  Indirect communication mode
The 5G system shall support 5G LAN-type service for authorized UEs using indirect network connection or direct network connection.
The 5G network shall be able to provide a remote UE using 5G LAN-type service with same level of service as if the remote UE would be using a direct network connection (i.e. provide required QoS for the Ethernet packets transferred between remote UE and relay UE if they are using 3GPP access).
The 5G network shall be able to support service continuity for the private communication between a remote UE with other member UEs of the same 5G LAN-VN, when the remote UE changes from one relay UE to another or when the UE changes between direct and indirect network connection.
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6.26.2.9  Service exposure
Based on MNO policy, the 5G network shall provide suitable APIs to allow a trusted third-party to create/remove a 5G LAN-VN.
Based on MNO policy, the 5G network shall provide suitable APIs to allow a trusted third-party to manage a 5G LAN-VN dedicated for the usage by the trusted third-party, including the address allocation.
Based on MNO policy, the 5G network shall provide suitable APIs to allow a trusted third-party to add/remove an authorized UE to/from a specific 5G LAN-VN managed by the trusted third-party.
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6.27  Positioning services [R16]Word-p. 42
6.27.1  Description
5G positioning services aims to support verticals and applications with positioning accuracies better than 10 meters, thus more accurate than the ones of TS 22.071 for LCS. High accuracy positioning is characterized by ambitious system requirements for positioning accuracy in many verticals and applications, including regulatory needs.
In Location-Based-Services and eHealth, higher accuracy is instrumental to new services and applications, both outdoor and indoor.
For example, on the factory floor, it is important to locate assets and moving objects such as forklifts, or parts to be assembled. Similar needs exist in transportation and logistics, for example rail, road and use of UAVs. In some road user cases, UE's supporting V2X application(s) are also applicable to such needs. In cases such as guided vehicles (e.g. industry, UAVs) and positioning of objects involved in safety-related functions, availability needs to be very high.
Mission Critical Organizations require mission critical services to have accurate positioning such that first responders may be located at all times during normal and critical operations, indoors as well as outdoors. The level of positioning accuracy (and other KPIs) required is much more stringent than that required by local and regional regulatory requirements for commercial 5G users.
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6.27.2  Requirements
The 5G system shall provide 5G positioning services in compliance with regulatory requirements.
NOTE 1:
example of regulatory requirements encompasses requirements on emergency calls (e.g. e911), reliability and safety requirement (RAMS) applicable to some use cases and verticals, implementation of Priority, Precedence, Preemption (PPP) mechanisms to ensure sufficient reliability metrics are reached.
The 5G system shall provide different 5G positioning services, supported by different single and hybrid positioning methods to supply absolute and relative positioning.
NOTE 2:
hybrid positioning methods include both the combination of 3GPP positioning technologies and the combination of 3GPP positioning technologies with non-3GPP positioning technologies such as, GNSS (e.g. Beidou, Galileo, GPS, Glonass), Network-based Assisted GNSS and High-Accuracy GNSS, Terrestrial Beacon Systems, dead-reckoning sensors (e.g. IMU, barometer), WLAN/Bluetooth-based positioning.
The 5G system shall enable an MCX UE to use the 5G positioning services to determine its position with the associated uncertainty/confidence of the position, on request, triggered by an event or periodically.
The 5G System shall be able to provide the 5G positioning services in case of roaming.
The 5G system shall support mechanisms to determine the UE's position-related data for period when the UE is outside the coverage of 3GPP RAT-dependent positioning technologies but within the 5G positioning service area (e.g. within the coverage of satellite access).
The 5G system shall be able to make the position-related data available to an application or to an application server existing within the PLMN, external to the PLMN, or in the User Equipment.
NOTE 3:
the position service latency can be tailored to the use cases.
The 5G system shall be able to manage and log position-related data in compliance with applicable traceability, authentication and security regulatory requirements.
The 5G system shall be able to request the UE to provide its position-related-data on request, triggered by an event or periodically and to request the UE to stop providing its position-related data periodically.
NOTE 4:
This requirement does not preclude whether the position is computed in the UE or elsewhere in the 5G System (e.g. core network).
The 5G system shall support mechanisms to configure dynamically the update rate of the position-related data to fulfil different performances (e.g. power consumption, position service latency) or different location modes.
NOTE 5:
for example, the 5G System needs to be able to request the UE to provide its location periodically with an update rate ranging from one location every [1 s-10 s] in location normal mode to one location every [30 s-300 s, or more] in location power saving mode. The 5G System needs to allow UEs to sleep for extended periods (e.g. one week), without requiring the UE to update its position data.
The 5G system shall allow the UE to trigger a different update rate of the position-related data based on whether the UE is moving or not.
The 5G system shall be able to determine the position-related data of the 5G positioning services with any update rate ranging from one set of position-related data every 0 ,1 s to one set of position-related data every month.
NOTE 6:
the position service latency can be tailored to the use cases.
The 5G System shall be able to negotiate the positioning methods according to the operator's policy or the application's requirements or the user's preferences and shall support mechanisms to allow the network or the UE to trigger this negotiation.
The 5G system shall supply a method for the operator to configure and manage different positioning services for different users.
The 5G system shall be able to determine the reliability, and the uncertainty or confidence level, of the position-related data.
The 5G system shall be able to access to the positioning methods used for calculating the position-related data and to the associated uncertainty/confidence indicators.
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6.28  Cyber-physical control applications in vertical domains [R16]Word-p. 43
6.28.1  Description
The 5G system is expected to meet the service requirements for cyber-physical control applications in vertical domains.
A vertical domain is a particular industry or group of enterprises in which similar products or services are developed, produced, and provided. Automation refers to the control of processes, devices, or systems in vertical domains by automatic means. The main control functions of automated control systems include taking measurements, comparing results, computing any detected or anticipated errors, and correcting the process to avoid future errors. These functions are performed by sensors, transmitters, controllers, and actuators.
Cyber-physical systems are to be understood as systems that include engineered, interacting networks of physical and computational components. Cyber-physical control applications are to be understood as applications that control physical processes. Cyber-physical control applications in automation follow certain activity patterns, which are open-loop control, closed-loop control, sequence control, and batch control.
Communication services supporting cyber-physical control applications need to be ultra-reliable, dependable with a high communication service availability, and often require low or (in some cases) very low end-to-end latency.
Communication in automation in vertical domains follows certain communication patterns. The most well-known is periodic deterministic communication, others are a-periodic deterministic communication and non-deterministic communication.
Communication for cyber-physical control applications supports operation in various vertical domains, for instance industrial automation and energy automation.
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6.28.2  Requirements
The 5G system supports the communication services for cyber-physical control applications in the vertical domains of factories of the future (smart manufacturing), electric power distribution, central power generation, and rail-bound mass transit. The associated requirements are described in 3GPP TS 22.104.
6.29  Messaging aspects [R16]Word-p. 44
6.29.1  Description
The 5G system is expected to support advanced capabilities and performance of messaging service especially for massive IoT communication which are introduced by the MSGin5G Service [22]. The MSGin5G Service provides one to one, group and broadcast message services for thing-to-thing and person-to-thing communication with low end-to-end latency and high reliability of message delivery, in a resource efficient manner to optimize the resource usage of the both control plane and user plane in the network, and power saving in the user devices.
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6.29.2  Requirements
The 5G system supports the MSGin5G Service. The associated service level requirements of the MSGin5G Service are described in 3GPP TS 22.262.
6.30  Steering of roaming [R17]
6.30.1  Description
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.
6.30.2  Requirements
The following set of requirements complement the requirements listed in 3GPP TS 22.011, clause 3.2.2.8.
The 5G system shall support a mechanism for the HPLMN to control the timing when a UE registered on a VPLMN, in automatic mode (see clause 3.1 of TS 23.122) and currently in CONNECTED mode, enters IDLE mode and initiates higher priority PLMN selection based on the type of ongoing communication.
NOTE:
Changes needed to support the above requirement are expected to have minimum impact on the 5G system. UE is expected to initiate the above-mentioned PLMN selection e.g. by locally releasing the established N1 NAS signalling connection.
Steering of roaming control information provided by the HPLMN to the UE shall not force the UE to release ongoing services when the UE are engaged in high priority service (e.g. emergency call, MPS session or other sessions defined by the user to be of high priority).
The mechanism mentioned above in this clause shall be available to the HPLMN even if the VPLMN the UE is registered on is compliant to an earlier release of the 5G system.
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6.31  Minimization of Service Interruption [R17]
6.31.1  Description
A mobile network may fail to provide service in the event of a disaster (for example a fire.) The requirements listed in this clause provide the 5GS with the capability to mitigate interruption of service. UEs may obtain service in the event of a disaster, if there are PLMN operators prepared to offer service. The minimization of service interruption is constrained to a particular time and place. To reduce the impact to the 5G System of supporting Disaster Roaming, the potential congestion resulting from an influx or outflux of Disaster Inbound Roamers is taken into account.
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6.31.2  RequirementsWord-p. 45
6.31.2.1  General
Subject to regulatory requirements or operator's policy, 3GPP system shall be able to enable a UE of a given PLMN to obtain connectivity service (e.g. voice call, mobile data service) from another PLMN for the area where a Disaster Condition applies.
6.31.2.2  Disaster Condition
The 3GPP system shall enable UEs to obtain information that a Disaster Condition applies to a particular PLMN or PLMNs.
NOTE:
If a UE has no coverage of its HPLMN, then obtains information that a Disaster Condition applies to the UE's HPLMN, the UE can register with a PLMN offering Disaster Roaming service.
The 3GPP system shall support means for a PLMN operator to be aware of the area where Disaster Condition applies.
The 3GPP system shall be able to support provision of service to Disaster Inbound Roamer only within the specific region where Disaster Condition applies.
The 3GPP system shall be able to provide efficient means for a network to inform Disaster Inbound roamers that a Disaster Condition is no longer applicable.
Subject to regulatory requirements or operator's policy, the 3GPP system shall support a PLMN operator to be made aware of the failure or recovery of other PLMN(s) in the same country when the Disaster Condition is applies, or when the Disaster Condition is not applicable.
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6.31.2.3  Disaster Roaming
The 3GPP system shall be able to provide means to enable a UE to access PLMNs in a forbidden PLMN list if a Disaster condition applies and no other PLMN is available except for PLMNs in the forbidden PLMN list.
The 3GPP system shall provide means to enable that a Disaster Condition applies to UEs of a specific PLMN.
The 3GPP system shall be able to provide a resource efficient means for a PLMN to indicate to potential Disaster Inbound Roamers whether they can access the PLMN or not.
Disaster Inbound Roamers shall perform network reselection when a Disaster Condition has ended.
The 3GPP system shall minimize congestion caused by Disaster Roaming.
3GPP system shall be able to collect charging information for a Disaster Inbound Roamer with information about the applied disaster condition.
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6.32  UAV aspects [R17]
6.32.1  Description
The 3GPP system is expected to support various enhanced UAV scenarios, especially for a wide range of applications and scenarios by using low altitude UAVs in various commercial and government sectors.
6.32.2  Requirements
The 3GPP system supports service requirements and KPIs related to command and control (C2), payload (e.g. camera) and the operation of radio access nodes on-board of UAVs. The associated requirements are described in 3GPP TS 22.125.
6.33  Video, imaging and audio for professional applications [R17]Word-p. 46
6.33.1  Description
Audio-Visual (AV) production includes television and radio studios, live news-gathering, sports events, music festivals, among others. Typically, numerous wireless devices such as microphones, in-ear monitoring systems or cameras are used in these scenarios. In the future, the wireless communication service for such devices are expected to be provided by a 5G system. AV production applications require a high degree of confidence, since they are related to the capturing and transmission of data at the beginning of a production chain. This differs drastically when compared to other multimedia services because the communication errors will be propagated to the entire audience that is consuming that content both live and on recorded medias. Furthermore, the transmitted data is often post-processed with filters which could actually amplify defects that would be otherwise not noticed by humans. Therefore, these applications call for uncompressed or slightly compressed data, and very low probability of errors. These devices will also be used alongside existing technologies which have a high level of performance and so any new technologies will need to match or improve upon the existing workflows to drive adoption of the technology.
The 3GPP system already plays an important role in the distribution of AV media content and services. Release 14 contains substantial enhancements to deliver TV services of various kinds, from linear TV programmes for mass audiences to custom-tailored on-demand services for mobile consumption. However, it is expected that also in the domain of AV content and service production, 3GPP systems will become an important tool for a market sector with steadily growing global revenues. There are several areas in which 3GPP networks may help to produce AV content and services in an efficient and flexible manner.
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6.33.2  Requirements
The 5G system supports the communication services for video, imaging and audio for professional applications. The associated requirements are described in 3GPP TS 22.263.
6.34  Critical medical applications [R17]
6.34.1  Description
The 5G system is expected to meet the service requirements for critical medical applications where critical medical applications denote medical devices and applications involved in the delivery of care for patient's survival. Additionaly, as the medical industry undergoes a shift to value-based healthcare, where companies and healthcare providers have to move to business models based on providing clinical value with cost efficiency, the 5G system can help to adopt new and more efficient care delivery models in order to reduce administrative and supply costs.
On this matter, 5G technology can especially have an important impact by:
  • enabling superior monitoring capability means thus improving the effectiveness of preventive care,
  • enabling shifting care location from hospitals to homes and other lower cost facilities,
  • improving operating room planning, enabling streamlining equipment usage and simplifying operating theater implementation,
  • Enhancing cooperation in critical situations between ambulance and hospital staff.
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6.34.2  Requirements
The 5G system shall support the communication services for critical medical applications. The associated requirements are described:
  • in 3GPP TS 22.104 for the requirements related to controlling both local or remote robotic diagnosis or surgery systems,
  • In 3GPP TS 22.263 for the requirements related to high quality medical imaging and augmented reality systems located in hybrid operating rooms, in remote healthcare facilities or ambulances,
  • In 3GPP TS 22.261, clause 7.5 for the requirements on the support of tele-diagnosis or tele-monitoring systems,
  • In 3GPP TS 22.261, clauses 6.10, 8.2 and 8.9 for the requirements on the security of medical data that fulfil regulatory requirements.
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