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3.2.2.1 General
In the following procedures the UE selects and attempts registration on PLMNs. In this TS, the term "PLMN Selection" defines a UE based procedure, whereby candidate PLMNs are chosen, one at a time, for attempted registration. A User Controlled PLMN Selector data field exists on the USIM to allow the user to indicate ...
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3.2.2.2 At switch-on or recovery from lack of coverage
If the Operator controlled signal threshold per access technology is set on the USIM, it shall be used for the selection of the last registered PLMN (and/or EHPLMN/HPLMN) and for the automatic mode network selection steps described in this clause. In particular, if the Operator controlled signal threshold per access te...
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3.2.2.3 User reselection
At any time, the user may request the UE to initiate reselection and registration onto an alternative available PLMN, according to the following procedures, dependent upon the operating mode. A) Automatic Network Selection Mode The UE shall follow the procedure defined in clause 3.2.2.2.A) above, including the use of...
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3.2.2.4 Mobile Station reactions to indications of service restriction from the network
Different types of UE behaviour are required to support, for example, national roaming, regionally provided service and temporary international roaming restrictions. The behaviour to be followed by the UE is indicated by the network. 3.2.2.4.1 "Permanent" PLMN restriction When a registration attempt by the UE is reje...
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3.2.2.4.3 PLMN restrictions for PS services
When a registration attempt for PS services by the UE is rejected by the network with the cause "GPRS services not allowed in this PLMN", the PLMN identity shall be written to a list of "forbidden PLMNs for GPRS service" in the ME. This list is deleted when the UE is switched off or when the SIM/USIM is removed; the ma...
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3.2.2.5 Periodic network selection attempts
If the Operator controlled signal threshold per access technology is not set on the USIM, a UE in Automatic Mode shall make periodic attempts to look for a higher priority PLMN including associated Access Technology of the same country as the currently received PLMN including associated Access Technology or for a highe...
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3.2.2.6 Investigation PLMN Scan
The operator shall be able to control by SIM/USIM configuration whether a UE that is capable shall perform an investigation scan. This investigation scan shall be performed after each successful PLMN selection as well as during limited service state. The investigation scan shall search for a higher prioritised PLMN tha...
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3.2.2.7 Void
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3.2.2.8 Steering Of Roaming
Steering to a specific VPLMN It shall be possible for the HPLMN at any time to direct a UE, that is in automatic mode, to search for a specific VPLMN and, if it is available, move to that VPLMN as soon as possible. This VPLMN shall then be regarded as the highest priority VPLMN as defined by the operator, though any E...
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3.2.3 Network selection for Multi-mode terminals with 3GPP Capability
Different types of Multi-mode terminals combining different technologies and systems in one terminal can be produced. It is not possible to foresee all possible configurations and provide a detailed technical specification for network and system selection for all possible multi-mode terminal configurations. The followi...
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4 Access control
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4.1 Purpose
Under certain circumstances, it will be desirable to prevent UE users from making access attempts (including emergency call attempts) or responding to pages in specified areas of a PLMN. Such situations may arise during states of emergency, or where 1 of 2 or more co-located PLMNs has failed. Broadcast messages should...
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4.2 Allocation
All UEs are members of one out of ten randomly allocated mobile populations, defined as Access Classes 0 to 9. The population number is stored in the SIM/USIM. In addition, UEs may be members of one or more out of 5 special categories (Access Classes 11 to 15), also held in the SIM/USIM. These are allocated to specific...
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4.3 Operation
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4.3.1 Access Class Barring
If the UE is a member of at least one Access Class which corresponds to the permitted classes as signalled over the radio interface, and the Access Class is applicable in the serving network, access attempts are allowed. Additionally, in the case of the access network being UTRAN the serving network can indicate that U...
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4.3.2 Service Specific Access Control
Additionally to the above requirements in 4.3.1; - In E-UTRAN it shall be possible to support a capability called Service Specific Access Control (SSAC) to apply independent access control for telephony services (MMTEL) for mobile originating session requests from idle-mode and connected-mode as following: - The serv...
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4.3.3 Access Control for CSFB
Access control for CSFB provides a mechanism to prohibit UEs to access E-UTRAN to perform CSFB. It minimizes service availability degradation (i.e. radio resource shortage, congestion of fallback network) caused by mass simultaneous mobile originating requests for CSFB and increases the availability of the E-UTRAN reso...
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4.3.4 Extended Access Barring
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4.3.4.1 General
Extended Access Barring (EAB) is a mechanism for the operator(s) to control Mobile Originating access attempts from UEs that are configured for EAB in order to prevent overload of the access network and/or the core network. In congestion situations, the operator can restrict access from UEs configured for EAB while per...
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4.3.4.2 Overriding extended access barring
Overriding Extended Access Barring is a mechanism for the operator to allow UEs that are configured for EAB to access the network under EAB conditions. The following requirements apply: - The UE configured with EAB may be configured by the HPLMN with a permission to override EAB; - For a UE configured with the permi...
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4.3.5 Application specific Congestion control for Data Communication (ACDC)
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4.3.5.1 Service description
Application specific Congestion control for Data Communication (ACDC) is an access control mechanism for the operator to allow/prevent new access attempts from particular, operator-identified applications in the UE in idle mode. ACDC does not apply to UEs in connected mode. The network can prevent/mitigate overload of ...
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4.3.5.2 Requirements
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4.3.5.2.1 General
The following requirements apply: - This feature shall be applicable to UTRAN PS Domain and E-UTRAN; - This feature shall be applicable to UEs in idle mode only that are not a member of one or more of Access Classes 11 to 15; - ACDC shall not apply to MMTEL voice, MMTEL video, SMS over IMS (SMS over IP) emergency ca...
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4.3.5.2.2 ACDC Categories
When configuring the UE with categories of applications, the home network shall proceed as follows: - Applications whose use is expected to be restricted the least shall be assigned the highest ACDC category; and - Applications whose use is expected to be restricted more than applications in the highest category sha...
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4.3.6 Access Control for Indirect 3GPP Communications
For the case where an Evolved ProSe Remote UE is trying to access the network via an Evolved ProSe UE-to-Network Relay, the following requirements apply: - Access control for CSFB shall not apply to an Indirect 3GPP Communication; - ACB, EAB and ACDC shall apply when the Evolved ProSe UE-to-Network Relay is in IDLE m...
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4.4 Emergency Calls
An additional control bit known as "Access Class 10" is also signalled over the radio interface to the UE. This indicates whether or not network access for Emergency Calls is allowed for UEs with access classes 0 to 9 or without an IMSI. For UEs with access classes 11 to 15, Emergency Calls are not allowed if both "Acc...
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4.5 Control of UE Capabilities
To protect the user from the effects of a misbehaving UE (e.g. causing additional charges, degraded performance) and to protect the network operator's network capacity, including radio resources and network signalling and processing, means shall be provided for the HPLMN/EHPLMN and the VPLMN to provide an indication to...
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4.6 Prevention of mobile-originating signalling and/or data traffic
The network shall be able to control the behavior of UEs in E-UTRAN in connected mode to prevent mobile originating signalling and/or data traffic, while the access barring mechanisms specified under Clause 4.3 are being applied to UEs in idle mode.
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5 Support of Localised Service Area (SoLSA)
SoLSA consists of a set of service features that give the operator a basis to offer subscribers different services (e.g. tariffs or access rights) depending on the location of the subscriber. (3GPP TS 22.043 [5]). The following section is only applicable to the support of SoLSA functionality in GERAN.
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5.1 Network selection
The standard automatic and manual network selection procedures will be used. Manual network selection may be required when the PLMN providing the users SoLSA service is not the one on which the user is currently registered. At manual network selection the UE shall provide the means to present the subscribers LSA(s) f...
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5.2 The Idle-mode operation
The UE shall always select a valid LSA with the highest priority.
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5.2.1 Subscriber moving from a normal environment to his localised service area
The UE shall have the ability to prioritise allowed LSA cells in reselection, making it possible to camp on a LSA cell earlier (the function shall be network controlled).
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5.2.2 Subscriber moving away from his localised service area to a normal environment
The UE shall have the ability to prioritise allowed LSA cells in reselection, making it possible to camp on a LSA cell longer (the function shall be network controlled).
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5.2.3 Subscriber staying in his localised service area
The UE shall have the ability to prioritise allowed LSA cells in reselection by being more persistent (the function shall be network controlled). NOTE: Typically in indoor environments there are occasional reflections and "disturbances" due to macro cells, e.g. near the windows. In such a case LSA cells should be fav...
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5.3 LSA only access
It shall be possible to allow LSA user to access PLMN only within his LSAs. A LSA user is not allowed to receive and/or originate a call outside the allowed LSA area. When UE is out of the allowed LSA area it shall be registered in PLMN but indicate subscriber/service specific "out of LSA area" notification. It shall ...
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5.4 Exclusive access
Access to exclusive access cells is restricted to defined LSA subscribers. Non-LSA subscriber shall consider exclusive access cells as not suitable, only allowing to camp for emergency calls (limited service state 3GPP TS 23.122 [3]).
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5.5 Preferential access
As a network-controlled function, it shall be possible in LSA to allocate resources at call setup and during the active mode to LSA users compared to non-LSA users.
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6 Support of 3GPP - WLAN Interworking
Support of 3GPP-WLAN interworking and network selection is captured in TS 22.234 [6] NOTE: The requirement specification 22.234 is no longer maintained from Release 12 onwards.
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6.1 Void
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6.2 Void
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7 Administrative restriction of subscribers’ access
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7.1 Allowed Location and Routing Area identities access
Means shall be standardised for an administrative restriction of subscribers’ access without the need of having explicit Tracking/Location/Routing Area identities in the individual subscription profiles. To achieve this it shall be possible to indicate per subscriber, in subscription data, allowed categories of Track...
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7.2 Void
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7.3 UE configured radio technology restriction
A UE shall support a Man Machine Interface setting for the user to disable use of one or more of the UE’s radio technologies, regardless of PLMNs. Radio technologies that individually can be disabled is dependent on supported radio technology of the UE such as GSM/EDGE, WCDMA, E-UTRA, and NR. A UE shall support a Man ...
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8 Support of Home NodeB and Home E-NodeB
The service requirements for Home NodeB and Home eNodeB can be found in [14]. 9 Control of traffic from UE-based applications toward associated server
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9.1 Description
This feature allows operators to control traffic from UEs to an application on a third-party server or the third-party server itself. When an application on a third-party server or the third-party server itself becomes congested or fails the traffic towards that server need to be controlled to avoid/mitigate potential ...
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9.2 Requirements
Under network control, the UE shall be able to control (i.e. block and/or prioritize) traffic from UEs to an application on a third-party server or the third-party server itself without affecting traffic to other applications on the third-party server or to other third-party servers. For this purpose, the UE shall be ...
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10.1 Description
3GPP PS Data Off is a feature which, when configured by the HPLMN and activated by the user, prevents transport via PDN connections or PDU sessions in 3GPP access networks of all data packets except IP packets required by 3GPP PS Data Off Exempt Services.
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10.2 Requirements
The 3GPP system shall provide a mechanism by which an operator can configure which operator services are defined as 3GPP PS Data Off Exempt Services for their own subscribers. When 3GPP PS Data Off is activated in the UE, in order to preserve charging consistency: - the UE shall inform the network that 3GPP PS Data O...
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1 Scope
The present document provides Stage 1 normative service requirements for 5G systems, in particular service requirements for cyber-physical control applications in vertical domains and requirements for auxiliary applications. In the context of the present document, cyber-physical systems are to be understood as systems ...
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2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present document. - References are either specific (identified by date of publication, edition number, version number, etc.) or non‑specific. - For a specific reference, subsequent revisions do not apply. - Fo...
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3 Definitions, symbols and abbreviations
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3.1 Definitions
For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 [1] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP TR 21.905 [1]. characteristic parameter: numerical value that can be used for characteris...
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3.2 Symbols
For the purposes of the present document, the following symbols apply: <symbol> <Explanation>
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3.3 Abbreviations
For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [1] and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in 3GPP TR 21.905 [1]. AV Audio-Visual AVPROD AV Production CSIF Communication Service I...
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4 Overview
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4.1 Introduction
For the purpose of this document, 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 autom...
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4.2 Activity patterns in automation
Open-loop control: The salient aspect of open-loop control is the lack of feedback from the output to the control; when providing commands to an actuator, it is assumed that the output of the influenced process is predetermined and within an acceptable range. This kind of control loop works if the influences of the env...
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4.3 Communication attributes
Communication in automation can be characterised by two main attributes: periodicity and determinism. Periodicity means that a transmission interval is repeated. For example, a transmission occurs every 15 ms. Reasons for a periodical transmission can be the periodic update of a position or the repeated monitoring of a...
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4.4 Control systems and related communication patterns
There are preferences in the mapping between the type of control and the communication pattern. Open-loop control is characterised by one or many messages sent to an actuator. These can be sent in a periodic or an aperiodic pattern. However, the communication means used need to be deterministic since typically an activ...
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4.5 Implications for 5G systems
In order to be suitable for automation in vertical domains, 5G systems need to be dependable and flexible to meet specific KPIs to serve specific applications and use cases. They need to come with the system properties of reliability, availability, maintainability, safety, and integrity. What particular requirements ea...
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5 Performance requirements
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5.1 Overview
There are two fundamental perspectives concerning dependable communication in 5G systems: the end-to-end perspective of the communication services and the network perspective (see Figure 5.1-1). Figure 5.1-1: Network perspective of 5G system The Communication Service in Figure 5.1-1 may be implemented as a logical comm...
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5.2 Periodic deterministic communication
Periodic deterministic communication is periodic with stringent requirements on timeliness and availability of the communication service. A transmission occurs every transfer interval. A description of periodic deterministic communication can be found in Clauses 4.3 and 4.4. Additional information on the underlying use...
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5.3 Aperiodic deterministic communication
Aperiodic deterministic communication is without a pre-set sending time, but still with stringent requirements on timeliness and availability of the communication service. A description of aperiodic deterministic communication can be found in Clauses 4.3 and 4.4. Additional information on the underlying use cases of th...
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5.4 Non-deterministic communication
Non-deterministic communication subsumes all other traffic types than periodic/aperiodic deterministic communication. This includes periodic/aperiodic non-real-time traffic. A description of non-deterministic communication can be found in Clauses 4.3 and 4.4. Additional information on the underlying use cases of the se...
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5.5 Mixed traffic
Mixed traffic cannot be assigned to one of the other communication patterns exclusively. Additional information on the underlying use cases of the sets of requirements in Table 5.5-1 can be found in Annex A. Further information on characteristic parameters and influence quantities used in Table 5.5-1 can be found in An...
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5.6 Clock synchronisation requirements
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5.6.0 Description
Clock synchronicity, or time synchronization precision, is defined between a sync master and a sync device. The requirement on the synchronicity budget for the 5G system is the time error contribution between ingress and egress of the 5G system on the path of clock synchronization messages. Clock synchronisation requir...
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5.6.1 Clock synchronisation service level requirements
The 5G system shall support a mechanism to process and transmit IEEE 1588v2 / Precision Time Protocol messages to support 3rd-party applications which use this protocol. The 5G system shall support a mechanism to synchronise the user-specific time clock of UEs with a global clock. The 5G system shall support a mechanis...
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5.6.2 Clock synchronisation service performance requirements
Table 5.6.2-1: Clock synchronization service performance requirements for 5G System User-specific clock synchronicity accuracy level Number of devices in one communication group for clock synchronisation 5GS synchronicity budget requirement (note 1) Service area Scenario 1 up to 300 UEs ≤ 700 ns (note 4) ≤ 100 m x 100 ...
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5.7 Positioning performance requirements
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5.7.1 General requirements
High accuracy positioning is becoming essential for Factories of the Future. The reason for this is that tracking of mobile devices as well as mobile assets is becoming increasingly important in improving processes and increasing flexibility in industrial environments. The 5G system shall provide positioning informatio...
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5.7.2 Energy efficiency requirements for high accuracy positioning
The 5G system shall support low power high accuracy positioning mechanisms that allow a battery-constrained UE to sustain a long lifetime without changing battery. Some corresponding use cases and example scenarios are captured in Annex A.7.2.
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5.8 Network operation requirements
For use by Industry 4.0, the 5G system needs to meet various operational options that are not typical in a traditional mobile operator setting. Additional system requirements that enable a 5G system to support those options are included in this clause. 5G system shall provide support for reliable communications when a ...
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6 Ethernet applications
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6.1 Description
This section lists the requirements applicable to the 5G system for supporting cyber-physical applications using Ethernet. For requirements pertaining to common, fundamental Ethernet transport requirements, and any requirements necessary to support the 5G LAN-type service, see Clause 6.24 in TS 22.261 [2].
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6.2 Requirements
For infrastructure dedicated to high performance Ethernet applications, the 3GPP system shall support clock synchronisation defined by IEEE 802.1AS across 5G-based Ethernet links with PDU-session type Ethernet. For infrastructure dedicated to high performance Ethernet applications, the 3GPP system shall support clock s...
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7 Direct device connection for cyber-physical control applications
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7.1 Description
This section lists the requirements applicable to the 5G system for supporting cyber-physical control applications using wireless direct device connection.
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7.2 Requirements
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7.2.1 General
The 5G system shall allow UEs to use direct device connection when the UEs are not served by a RAN. The 5G system shall be able to support direct device connection between UEs in close proximity using spectrum different than the spectrum being used for the 5GC-based communication. The 5G system shall be able to support...
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7.2.2 Network performance
The 5G system shall be able to support direct device connection between a group of UEs for periodic deterministic communication (both unicast and multicast) with respective service performance requirements in Table 5.2-1 related to cooperative carrying. The 5G system shall be able to support mobility of the group of UE...
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7.2.3 Clock synchronization
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7.2.3.1 Description
This clause lists the service level requirements and performance requirements applicable to the 5G system for supporting clock synchronization for direct device connection, building on the description already provided in Clause 5.6.0.
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7.2.3.2 Clock synchronization requirements
The 5G system shall be able to support clock synchronization (working clock domain) between the UEs within the group of UEs using direct device connection ProSe communication. The 5G system shall be able to support Precision Time Protocol-based (IEEE 802.1AS [22] or another applicable IEEE Std 1588 [34] profile) or 5G ...
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7.2.4 Service Continuity
The 5G system shall be able to minimize service disruption for a group of UEs using direct device connection with respective service performance requirements in Table 5.2-1 related to cooperative carrying, when the group moves between a non-public network and a PLMN (subject to operator policies and agreement between t...
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7.2.5 Direct device connection via UE to UE relay
The 5G system shall be able to support direct device connection via an UE to UE relay with respective service performance requirements in Table 5.2-1 related to cooperative carrying between UEs out of transmission range of each other.
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8 Indirect network connection for cyber-physical control applications
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8.1 Description
This section lists the requirements applicable to the 5G system for supporting cyber-physical control applications using wireless indirect network connection.
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8.2 Requirements
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8.2.1 General
The 5G system shall be able to support multicast communication between the UEs within the group of UEs using indirect network connection.
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8.2.2 Communication via indirect network connection
The 5G system shall be able to provide service to an out-of-coverage UE via indirect network connection using one relay UE while meeting the performance requirements specified for the process automation use cases in Table 5.2-1 (related to Annex A.2.3.1 and A.2.3.2).
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8.2.3 Clock synchronization
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8.2.3.1 Description
This clause lists the service level requirements and performance requirements applicable to the 5G system for supporting clock synchronization for indirect network connection, building on the description already provided in Clause 5.6.0.
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8.2.3.2 Clock synchronization requirements
The 5G system shall be able to support clock synchronization (working clock domain) for UEs using indirect network connection. The 5G system shall be able to support Precision Time Protocol-based (IEEE 802.1AS [22] or another applicable IEEE Std 1588 [34] profile) or 5G sync domain-based clock synchronization for UEs u...
162c3f0c36a54745dc509a8130708d2d
22.104
8.2.4 Service Continuity
The 5G system shall be able to minimize service disruption for a UE using indirect network connection with respective service performance requirements in Table 5.2-1 related to process automation, when the UE moves between a non-public network and a PLMN (subject to operator policies and agreement between the operators...
162c3f0c36a54745dc509a8130708d2d
22.104
9 Recovery of infrastructure for electrical distribution
162c3f0c36a54745dc509a8130708d2d
22.104
9.1 Description
The robustness of the infrastructure for electrical power distribution may depend upon the possibility to operate telecommunication networks even during an energy system incident, in which electricity cannot be delivered to some network operator facilities. Through coordination between the network operator and the ener...