Content for  TS 22.011  Word version:  19.3.0

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1  Scopep. 6

The purpose of this TS is to describe the service access procedures as presented to the user.
Definitions and procedures are provided in this TS for international roaming, national roaming and regionally provided service. These are mandatory in relation to the technical realization of the Mobile Station (UE).

1.1  Referencesp. 6

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.
  • For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]  Void
TR 21.905: "Vocabulary for 3GPP Specifications".
TS 23.122: "Non Access Stratum functions related to Mobile Station (MS) in idle mode".
ITU-T Recommendation Q.1001: "General aspects of Public Land Mobile Networks".
TS 42.043: "Support of Localised Service Area (SoLSA). Stage 1".
TS 22.234: "Requirements on 3GPP system to wireless local area network (WLAN) interworking".
TS 22.101: "Service aspects; Service principles".
TS 22.278: "Service requirements for the Evolved Packet System (EPS)".
[9]  Void
TS 25.304: "User Equipment (UE) procedures in idle mode and procedures for cell reselection in connected mode".
[11]  Void
[12]  Void
TS 36.331: "E-UTRA Radio Resource Control (RRC)".
TS 22.220: "Service requirements for Home NodeBs and Home eNodeBs".
3GPP2 C.S0004-A v6.0: "Signaling Link Access Control (LAC) Standard for cdma2000 Spread Spectrum Systems - Addendum 2"
TS 22.153: "Multimedia priority service".
TS 36.306: "Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) radio access capabilities"
TS 43.064: "General Packet Radio Service (GPRS); Overall description of the GPRS radio interface; Stage 2"
ITU-T Recommendation E.212: "The international identification plan for public networks and subscriptions"
TS 26.114: "IP Multimedia Subsystem (IMS); Multimedia Telephony; Media handling and interaction".

1.2  Definitions and abbreviationsp. 7

1.2.1  Definitions |R15|p. 7

In addition to those below, abbreviations used in this 3GPP TS are listed in TR 21.905.
3GPP PS Data Off:
A feature which when configured by the HPLMN and activated by the user prevents transport via PDN connections in 3GPP access of all IP packets except IP packets required by 3GPP PS Data Off Exempt Services.
3GPP PS Data Off Exempt Services:
A set of operator services that are allowed even if the 3GPP PS Data Off feature has been activated in the UE by the user.
Disaster Condition:
This is the condition that a government decides whether applicable or not based on, e.g. a natural disaster or a man-made disaster. When this condition applies service interruptions and failures will be mitigated.
A Public Land Mobile Network (PLMN) is a network established and operated by an Administration or RPOA for the specific purpose of providing land mobile communication services to the public. It provides communication possibilities for mobile users. For communications between mobile and fixed users, interworking with a fixed network is necessary.
A PLMN may provide service in one, or a combination, of frequency bands.
As a rule, a PLMN is limited by the borders of a country. Depending on national regulations there may be more than one PLMN per country.
A relationship exists between each subscriber and his home PLMN (HPLMN). If communications are handled over another PLMN, this PLMN is referred to as the visited PLMN (VPLMN).
PLMN Area:
The PLMN area is the geographical area in which a PLMN provides communication services according to the specifications to mobile users. In the PLMN area, the mobile user can set up calls to a user of a terminating network. The terminating network may be a fixed network, the same PLMN, another PLMN or other types of PLMN.
Terminating network users can also set up calls to the PLMN.
The PLMN area is allocated to a PLMN. It is determined by the service and network provider in accordance with any provisions laid down under national law. In general, the PLMN area is restricted to one country. It can also be determined differently, depending on the different telecommunication services, or type of UE.
If there are several PLMNs in one country, their PLMN areas may overlap. In border areas, the PLMN areas of different countries may overlap. Administrations will have to take precautions to ensure that cross border coverage is minimized in adjacent countries unless otherwise agreed.
System Area:
The System Area is defined as the group of PLMN areas accessible by UEs.
Interworking of several PLMNs and interworking between PLMNs and fixed network(s) permit public land mobile communication services at international level.
Service Area:
The Service Area is defined in the same way as the Service Area according to ITU-T Recommendation Q.1001 [4]. In contrast to the PLMN area it is not based on the coverage of a PLMN. Instead it is based on the area in which a fixed network user can call a mobile user without knowing his location. The Service Area can therefore change when the signalling system is being extended, for example.
Regionally Provided Service:
Regionally Provided Service is defined as a service entitlement to only certain geographical part(s) of a PLMN, as controlled by the network operator.
Shared MCC:
MCC assigned by ITU-T as shared MCC according to ITU-T E.212 [19], except within this specification for PLMN selection purposes the MCC of value 999 is not considered a shared MCC.
Localised Service Area (LSA):
The localised service area concept shall give the operator a basis to offer subscribers different services (e.g. tariffs or access rights) depending on the location of the subscriber. An LSA consists of a cell or a number of cells within a PLMN. (TS 42.043).
Tracking Area:
E-UTRAN utilises Tracking Areas (TA) for UE access control, location registration, paging and mobility management. The TA is independent of Location Areas (LA) and Routing Areas (RA). A TA comprises one or more E-UTRA cells Service requirements for E-UTRAN are specified in TS 22.278.

1.2.2  Abbreviations |R15|p. 8

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.
Application specific Congestion control for Data Communication
Extended Access Barring
Service Specific Access Control

2  Roamingp. 8

2.1  General requirementsp. 8

A UE with a valid IMSI may roam and access service in the area authorized by the entitlement of the subscription.
If a communication has been established, the UE will in principle not suffer an interruption within the PLMN area (provided the entitlement of the subscription allows it). Exceptions are possible if no network resources or radio coverage are available locally.
However, if the UE leaves the PLMN area, an established communication may terminate. If the user then wants to continue, another network providing service has to be selected and a new communication has to be established (see clause 3).
Subject to roaming agreements, a visited network shall be able to prevent incoming roamers from using a particular radio access technology (e.g. when the home network has not implemented this radio access technology).

2.2  International roamingp. 8

International roaming is a service whereby a UE of a given PLMN is able to obtain service from a PLMN of another country.
The availability of International Roaming is subject to inter-PLMN agreements.

2.3  National roamingp. 8

National Roaming is a service whereby a UE of a given PLMN is able to obtain service from another PLMN of the same country, anywhere, or on a regional basis.
The availability of National Roaming depends on the home PLMN of the requesting UE and the visited PLMN; it does not depend on subscription arrangements.

2.4  Roaming in shared networks |R6|p. 8

The following requirements are applicable to GERAN, UTRAN and E-UTRAN sharing scenarios:
  • Mechanisms shall be specified to enable flexible allocation of visiting roamers among core network operators that have roaming agreements with the same roaming partners. The core network operators shall be able to pre-define their relative share of visiting roamers and distribute the visiting roamers that apply automatic network selection to different core networks connected to the radio access network accordingly.
  • When network sharing exists between different operators and a user roams into the shared network it shall be possible for that user to register with a core network operator (among the network sharing partners) that the user's home operator has a roaming agreement with, even if the operator is not operating a radio access network in that area.
  • The selection of a core network operator among those connected to the shared radio access network can either be manual (i.e. performed by the user after obtaining a list of available core network operators) or automatic (i.e. performed by the UE according to user and operator preferred settings). For further information see clause 3.2.

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