Content for  TR 21.905  Word version:  17.0.0

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3.E  EWord‑p. 12

Element Manager: Provides a package of end-user functions for management of a set of closely related types of network elements. These functions can be divided into two main categories.
Element Management Functions:
Set of functions for management of network elements on an individual basis. These are basically the same functions as supported by the corresponding local terminals.
Elementary File (EF):
A file containing access conditions and data and no other files on the UICC.
Elementary procedure (EP):
The RANAP, RNSAP, NBAP, S1AP, X2AP, PCAP, HNBAP, LPPa, RNA, RUA, RETAP and TMAAP protocols consist of elementary procedures (EPs).
An EP consists of an initiating message and possibly a response message.
Three kinds of EP are used:
  • Class 1: Elementary Procedures with response (success or failure).
  • Class 2: Elementary Procedures without response.
  • Class 3: Elementary Procedures with possibility of multiple responses (RANAP only).
For Class 1 EPs, the types of responses can be as follows:
    • A signalling message explicitly indicates that the elementary procedure has been successfully completed with the receipt of the response.
    • A signalling message explicitly indicates that the EP failed.
Class 2 EPs are considered always successful.
Class 3 EPs have one or several response messages reporting both successful and unsuccessful outcome of the requests, and temporary status information about the requests. This type of EP only terminates through response(s) or EP timer expiry.
An End-User is an entity (typically a user), associated with one or multiple subscriptions through identities (e.g. IMSIs, MSISDNs, IMPIs, IMPUs and application-specific identities). In the 3GPP system an End-User is characterised by an End-User Identity.
End-User Identity (EUI):
An End-User Identity is an identity that uniquely characterises an End-User in the 3GPP system. An End-User Identity is mainly intended for administration purposes of the operator.
Enterprise Systems:
Information Systems that are used in the telecommunication organisation but are not directly or essentially related to the telecommunications aspects (Call Centre's, Fraud Detection and Prevention Systems, Invoicing etc).
Equivalent HPLMN / Equivalent Home PLMN (EHPLMN):
Any of the PLMN entries contained in the Equivalent HPLMN list.
Equivalent HPLMN list:
To allow provision for multiple HPLMN codes, PLMN codes that are present within this list shall replace the HPLMN code derived from the IMSI for PLMN selection purposes. This list is stored on the USIM and is known as the EHPLMN list. The EHPLMN list may also contain the HPLMN code derived from the IMSI. If the HPLMN code derived from the IMSI is not present in the EHPLMN list then it shall be treated as a Visited PLMN for PLMN selection purposes.
E-UTRAN Radio Access Bearer (E-RAB):
An E-RAB uniquely identifies the concatenation of an S1 Bearer and the corresponding Data Radio Bearer. When an E-RAB exists, there is a one-to-one mapping between this E-RAB and an EPS bearer of the Non Access Stratum as defined in [7].
Essential UE Requirement (Conditional):
Requirement which has to be implemented under certain Service conditions. e.g. AMR codec in UE which supports speech service
Essential UE Requirement (Unconditional):
Requirement which has to be implemented in any 3G UE in order to exist in and communicate with 3G network (e.g. Chiprate of 3.84Mcps).
Evolved Packet Core:
Is a framework for an evolution or migration of the 3GPP system to a higher-data-rate, lower-latency, packet-optimized system that supports, multiple RATs.
Evolved Packet System:
Is an evolution of the 3G UMTS characterized by higher-data-rate, lower-latency, packet-optimized system that supports multiple RATs. The Evolved Packet System comprises the Evolved Packet Core together with the evolved radio access network (E-UTRA and E-UTRAN).
Evolved UTRA:
Evolved UTRA is an evolution of the 3G UMTS radio-access technology towards a high-data-rate, low-latency and packet-optimized radio-access technology.
Evolved UTRAN:
Evolved UTRAN is an evolution of the 3G UMTS radio-access network towards a high-data-rate, low-latency and packet-optimized radio-access network.
Explicit Diversity Gain (dB):
The effective gain achieved using diversity techniques.
Extended DRX:
A power saving feature where paging cycles can range from seconds to several hours, depending on Radio Access Technology.
Extra SDU delivery probability:
The ratio of total (unrequested) extra service data units (SDUs) to total service data units received by a destination user in a specified sample (source: ITU-T X.140).

3.F  FWord‑p. 13

A named and hierarchically-classified data set on the UICC.
File identifier (FID):
The 2-byte name of a file or a directory on the UICC.
Fixed Network User Rate:
The user rate between IWF and the fixed network.
FC (Flow Control):
A set of mechanisms used to prevent the network from becoming overloaded by regulating the input rate transmissions.
Flexible Layer One (FLO):
GERAN feature that allows the channel coding of the layer one to be configured at call setup.
Fixed Mobile Convergence (FMC):
In a given network configuration, the capabilities that provide service and application to the end-user irrespective of the fixed or mobile access technologies and independent of user's location. In the NGN environment, it means to provide NGN services to end-users regardless of the access technology.
A framework defines a set of Application Programming Interface (API) classes for developing applications and for providing system services to those applications.
Frequency layer:
set of cells with the same carrier frequency.
Functional group:
A set of functions that may be performed by a single equipment (source: ITU-T I.112).

3.G  GWord‑p. 14

Geographical routing:
The conversion of the PDU's geographical area definition, which specifies the area in which the PDU will be broadcast, into an equivalent radio coverage map.
GERAN Radio Network Temporary Identifier (G-RNTI):
G-RNTI is an MS identifier which is allocated by the Serving BSC and is unique within this SBSC. It is allocated for all MSs having an RRC connection. The G-RNTI is always reallocated when the Serving BSC for the RRC connection is changed and deallocated when the RRC connection is released. The G-RNTI is also used at RLC/MAC during contention resolution.
An MS capable of GPRS services is a GPRS MS.
A set of members allowed to participate in the group call service. The group is defined by a set of rules that identifies a collection of members implicitly or explicitly. These rules may associate members for the purpose of participating in a group call, or may associate members who do not participate in data transfer but do participate in management, security, control, or accounting for the group.
Group call:
The relationship that exists between the members of a group for the purpose of transferring data. More than one group call may exist in a group. A group call establishes an active group.
Group call initiator:
A member (or third party) authorised to initiate a group call. More than one member may initiate group calls.
Group call participant:
A member of a group participating in a particular group call at a given time.
Group call server:
A logical entity that provides the group call service to the members.
Group call service:
A PTM service in which a relationship exists between participants of the group, and in which a single data unit transmitted by a source participant is received by multiple destination participants; it is a one-in, many-out service.
Group controller:
The member (or third party) responsible for the group creation and membership control.
GSM/EDGE Radio Access Network:
GERAN is a conceptual term identifying that part of the network which consists of BSCs and BTSs between A/Gb or Iu and Um interfaces.
refers in this specification to the GSM/GPRS access network.
GSM core network:
refers in this specification to the GSM NSS and GPRS backbone infrastructure.
GSM coverage:
an area where mobile cellular services are provided in accordance with GSM standards
GSM session:
That part of the card session dedicated to the GSM operation.
Guaranteed service:
A service model which provides highly reliable performance, with little or no variance in the measured performance criteria.

3.H  H

Handoff Gain/Loss (dB):
This is the gain/loss factor (+ or -) brought by handoff to maintain specified reliability at the cell boundary.
The transfer of a user's connection from one radio channel to another (can be the same or different cell).
The process in which the radio access network changes the radio transmitters or radio access mode or radio system used to provide the bearer services, while maintaining a defined bearer service QoS.
Hard Handover:
Hard handover is a category of handover procedures where all the old radio links in the UE are abandoned before the new radio links are established.
Heterogeneous Network:
a 3GPP access network consisting of multiple cells with different characteristics (e.g., for the case of E-UTRA: a variety of e-NodeBs, Home e-NodeBs, e-UTRA Relays).
Home Environment Value Added Service Provider. This is a VASP that has an agreement with the Home Environment to provide services. The Home Environment provides services to the user in a managed way, possibly by collaborating with HE-VASPs, but this is transparent to the user. The same service could be provided by more than one HE-VASP and each HE-VASP can provide more than one service.
Home Environment:
responsible for overall provision and control of the Personal Service Environment of its subscribers.
HNB Name:
The HNB Name is a broadcast string in free text format that provides a human readable name for the Home NodeB/eNodeB.
Home PLMN:
This is a PLMN where the MCC and MNC of the PLMN identity match the MCC and MNC of the IMSI. Matching criteria are defined in TS 23.122.
Hybrid cell:
A cell broadcasting a CSG indicator set to false and a specific CSG identity. This cell is accessible as a CSG cell by UEs which are members of the CSG and as a normal cell by all other UEs.

3.I  IWord‑p. 15

IC Card:
A card holding an Integrated Circuit containing subscriber, end user, authentication and/or application data for one or more applications.
IC card SIM:
Obsolete term for ID-1 SIM.
ICS proforma:
A document, in the form of a questionnaire, which when completed for an implementation or system becomes an ICS.
ID-000 SIM:
A UICC having the form on an ID-000 card (see ISO 7816-1 [24]) that contains a SIM application.
A UICC having the format of an ID-1 card (see ISO 7816-1 [24]) that contains a SIM.
Idle mode:
The state of UE switched on but which does not have any established RRC connection.
IP Flow Mobility:
distribution of IP flows on a UE between 3GPP and WLAN available accesses based on the different characteristics of the IP flows, the operator policies and the capabilities of the available accesses.
Implementation capability:
A capability that relates to a particular technical domain. Examples: a spreading factor of 128 (in the domain of the physical layer); the A5 algorithm; a 64 bit key length (in the domain of security); a power output of 21 dBm (in the domain of transmitter performance); support of AMR Codec (in the domain of the Codec); support of CHV1 (in the domain of the USIM).
Implementation Conformance Statement (ICS):
A statement made by the supplier of an implementation or system claimed to conform to a given specification, stating which capabilities have been implemented. The ICS can take several forms: protocol ICS, profile ICS, profile specific ICS, information object ICS, etc.
Information Data Rate:
Rate of the user information, which must be transmitted over the Air Interface. For example, output rate of the voice codec.
Initial paging information:
This information indicates if the UE needs to continue to read more paging information and eventually receive a page message.
Initial paging occasion:
The paging occasion the UE uses as starting point for its paging DRX cycle.
(in the context of security) The avoidance of unauthorised modification of information.
Inter-cell handover:
A handover between different cells. An inter-cell handover requires network connections to be altered.
Inter PLMN handover:
Handover between different PLMNs, ie having different MCC-MNC.
Inter system handover:
Handover between networks using different radiosystems , e.g. UMTS - GSM.
Interactive service:
A service which provides the means for bi-directional exchange of information between users. Interactive services are divided into three classes of services: conversational services, messaging services and retrieval services (source: ITU-T I.113).
The common boundary between two associated systems (source: ITU-T I.112).
International Mobile Station Equipment Identity (IMEI):
An "International Mobile Station Equipment Identity" is a unique number which shall be allocated to each individual mobile station equipment in the PLMN and shall be unconditionally implemented by the MS manufacturer.
International mobile user number (IMUN):
The International Mobile User Number is a diallable number allocated to a 3GPP System user.
Interference Signal Code Power (ISCP):
Given only interference power is received, the average power of the received signal after despreading and combining.
A software program that simulates a hypothetical computer by performing the operations defined by the instructions of this computer.(see also 'byte code' and 'virtual machine').
Interworking WLAN (I-WLAN):
A WLAN that interworks with a 3GPP system.
Intra-cell handover:
A handover within one sector or between different sectors of the same cell. An intra-cell handover does not require network connections to be altered.
Intra PLMN handover:
Handover within the same network, ie having the same MCC-MNC regardless of radio access system.
IP-Connectivity Access Network (IP-CAN):
The collection of network entities and interfaces that provides the underlying IP transport connectivity between the UE and the IMS entities. An example of an "IP-Connectivity Access Network" is GPRS.
IP-Connectivity Access Network bearer (IP-CAN bearer):
The data communications bearer provided by the IP-Connectivity Access Network. When using GPRS, the IP-Connectivity Access Network bearers are provided by PDP Contexts.
IRP Information Model:
An IRP Information Model consists of an IRP Information Service and a Network Resource Model (see below for definitions of IRP Information Service and Network Resource Model).
IRP Information Service:
An IRP Information Service describes the information flow and support objects for a certain functional area, e.g. the alarm information service in the fault management area. As an example of support objects, for the Alarm IRP there is the alarm record and alarm list.
IRP Solution Set:
An IRP Solution Set is a mapping of the IRP Information Service to one of several technologies (CORBA/IDL, SNMP/SMI, CMIP/GDMO, etc.). An IRP Information Service can be mapped to several different IRP Solution Sets. Different technology selections may be done for different IRPs.
Inter System Change:
a change of radio access between different radio access technologies such as GSM and UMTS.
IMS Credentials (IMC):
A set of IMS security data and functions for IMS access by a terminal that does not support any 3GPP access technology.. The IMC is not including an ISIM or a USIM. The IMC is not used if ISIM or USIM is present.
IMS Multimedia Telephony:
A service that allows multimedia conversational communications between two or more users. It provides real time bidirectional conversational transfer of media, e.g. speech, video, text or other types of data. The IMS multimedia telephony service includes Supplementary Services and takes account of regulatory requirements.
An application residing on the UICC that provides access to IP Multimedia Services.
Interconnection point between an RNC or a BSC and a 3G Core Network. It is also considered as a reference point.
Routing functionality for intra domain connection of RAN nodes to multiple CN nodes.
Iu mode:
mode of operation of the MS when connected to the Core Network via GERAN or UTRAN and the Iu interface.
Interface between an RNC and a Node B.
A logical interface between two RNC. Whilst logically representing a point to point link between RNC, the physical realisation may not be a point to point link.

3.J  JWord‑p. 17


3.K  K

Key pair:
Key pairs are matching private and public keys. If a block of data is encrypted using the private key, the public key from the pair can be used to decrypt it. The private key is never divulged to any other party, but the public key is available, e.g. in a certificate.

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