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`Introducing 3GPP
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`9 About
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`Introducing 3GPP
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`The 3rd Generation Partnership Project (3GPP) unites seven telecommunications standard development
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`organizations (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC), known as “Organizational Partners” providing their
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`members with a stable environment to produce the Reports and Specifications that define 3GPP
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`technologies.
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`3GPP specifications cover cellular telecommunications technologies, including radio access, core network
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`and service capabilities, which provide a complete system description for mobile telecommunications.
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`The 3GPP specifications also provide hooks for non-radio access to the core network, and for interworking
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`with non-3GPP networks
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`The Project’s Scope
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`The original scope of 3GPP (1998) was to produce Technical Specifications and Technical Reports for a 3G
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`Mobile System based on evolved GSM core networks and the radio access technologies that they support
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`{i.e., Universal Terrestrial Radio Access (UTRA) both Frequency Division Duplex (FDD) and Time Division
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`Duplex (TDD) modes).
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`The scope was subsequently amendedto include the maintenance and developmentof the Technical
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`Specifications and Technical Reports for evolved 3GPP technologies, beyond 3G.
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`e The latest 3rd Generation Partnership Project Agreement (Annex 42).
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`e The discussions that led to the signing of the 3GPP Project Agreement were recordedin a series of
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`slides called the “Partnership Project Description” that describes the basic principles and ideas on
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`which the project is based. The document has not been maintained sinceits first creation, but the
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`principles within do still remain valid.
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`https:/Avww.3gpp.org/about-us/introducing-3gpp
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`Organizing the work
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`Introducing 3GPP
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`The 3GPP Working Proceduresare the rule book of 3GPP, with sections covering:
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`e Description, Purpose, Scope and objectives
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`* Participation
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`« Structure
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`e Partners’ collective responsibilities
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`* Project Coordination Group (PCG)
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`e Technical Specification Groups(Incl. Elections)
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`* Work Programme & technical co-ordination
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`e Deliverables (Technical Specifications and Technical Reports)
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`e Reporting
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`The 3GPP production of specifications and studies (TRs) are contribution-driven, by member companies,
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`in Working Groups and at the Technical Specification Group (TSG) level. The Technical Specification
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`Groups in 3GPP are:
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`e Radio Access Networks (RAN)
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`* Services & Systems Aspects (SA)
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`« Core Network & Terminals (CT)
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`The Working Groups, within the TSGs, meet regularly and come togetherfor their quarterly TSG Plenary
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`meeting, where their work is presented for information, discussion and approval. The last meeting of the
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`week of TSG Plenary meetings is TSG SA, which also has responsibility for the overall coordination of the
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`technical work and for the monitoring ofits progress.
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`Generational Approach
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`The 3GPP technologies from these groups are constantly evolving through Generations of commercial
`cellular / mobile systems(see table below). With LTE and 5G work, 3GPP has becomethe focal point for
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`the vast majority of mobile systems beyond 3G.
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`Although these Generations have become an adequate descriptor for the type of network under
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`discussion, real progress on 3GPP standards is measured by the milestones achieved in particular
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`Releases. New features are ‘functionality frozen’ and are ready for implementation whena Release is
`completed. 3GPP works on a number of R Cookie policy |, starting future work well in advance of the
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`Introducing 3GPP
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`way of working ensures that progress is continuous & stable.
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`completion of the current Release. Although this adds some complexity to the work of the groups, such a
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`Backward Compatibility
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`The major focusfor all 3GPP Releases is to make the system backwards and forwards compatible where
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`possible, to ensure that the operation of user equipment is uninterrupted.
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`For 5G, many operators are starting with dual connectivity between LTE and 5G NR equipment —- using the
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`‘Non-Standalone’ work completed early in Release 15. In the process of completing the early drop of 5G NR
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`care has been taken to build ‘forward compatibility’ into Non-Standalone NR equipment, to ensure thatit
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`will be fit for use on Standalone 5G NR systems.
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`For details of the contents of each Release, see the appropriate ‘Release Description’ documentor go to
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`our dedicated Release page.
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`Details of all 3GPP Work Items are in the 3GPP Work Plan, which provides details of the cooperation
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`between all of the 3GPP groups on “Features”, defined as ‘new or substantially enhanced functionality
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`which represents added value to the existing 3GPP system’.
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