School of Specs 21.900v20.0.0

21.900 v20.0.0

Words and abbreviations

0 abbreviations and 28 definitions, exactly as 21.900 declares them in its own terms clause.

Abbreviations 0

This document declares no abbreviations of its own.

Definitions 28

building block
sub-division of a feature, representing a coherent set of technical functionality which would generally be expected to reside in a single system element.
change control
procedure whereby proposed modifications to a specification are presented for approval to the TSG as formal Change Requests.
Change Request (CR)
formal proposal presented on a standard form to modify a specification which is under change control.
closed
release status or specification status in which no changes of any kind to the release or the specification are permitted.
draft
specification status prior to change control, in which changes may be made without formal Change Requests.
early implementation
implementation of a particular feature on a platform of a release earlier than the release that contains the feature.
Example
For version 3.2.0 of a specification, the major version is 3.
Example
version 3.12.3.
feature
new or substantially enhanced functionality which represents added value to the existing system.
frozen
release status or specification status in which only essential corrections are permitted.
functionality
normative text contained in one or more Technical Specifications, corresponding either to a feature or to some portion of a feature.
group
TSG or TSG sub-group.
major version
For version x.y.z of a specification, x is called the major version.
Mobile Competence Centre (MCC)
The permanent secretariat, or support team, of 3GPP.
pseudo Change Request (pCR)
similar to a Change Request but has no CR number and is intended to propose new or revised text for inclusion in 3GPP TSs or TRs not yet under change control (i.e. still in the drafting phase). Known in some groups as "text proposal".
specification
generic term standing for Technical Specification and Technical Report.
Study Item (SI)
type of Work Item which will conduct feasibility studies and will result in a Technical Report
Study Item description (SID)
description of a Study Item in a standard Work Item Description sheet.
TSG
Technical Specification Group.
TSG change control
specification status in which the Technical Specification Group is responsible for approval of Change Requests.
TSG sub-group
Working Group or subgroup of a Working Group or of a Sub-Group.
version
unique identifier in the form x.y.z for a specification at a given point in time.
WG Change Control
specification status in which the Working Group is responsible for agreeing Change Requests for submission to the TSG for approval.
withdrawn
specification status in which the given version of the specification no longer belongs to the appropriate set of valid specifications.
Work Item (WI)
description of an enhancement to a technical area, which may be categorized as Study Item, Feature, Building Block or Work Task.
Work Item description (WID)
description of a Work Item in a standard Work Item Description sheet.
work task
sub-division of a building block, representing a self-contained, well-scoped and well-scheduled item of work.
Working Group (WG)
official subgroup of a TSG reporting to that TSG.