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The 3GPP (3rd Generation Partnership Project, created late 90's) is aimed towards the development of standards for the various generations of mobile networks, from 3G to 5G. The 3GPP is organized in 3 main domains or TSGs (Technical Specification Groups): Radio Access Networks (RAN), Service and Systems Aspects (SA), Core Networks and Terminals (CT). New Specifications, or new versions of a number of Specifications, are produced just after the quarterly plenary meetings for each domain. Afterwards the ETSI publishes the PDF versions for the releases that have been frozen (i.e. from June 2018, up to Rel‑15). The ETSI does not publish the PDF version for studies (8xx numbers, and sometimes 7xx numbers).
How initial GSM series have been split into 3GPP series
For a better overview of the contents of a specification or report, we reproduce the Table of Contents (ToC). A particularity of 3GPP standards development is that the original section numbers in a document are preserved. It can be extended, but a deleted section will appear as 'Void' and a section inserted between sections with consecutive numbers will be suffixed with a letter. We have taken advantage of this in order to highlight the number of the 3GPP Release number at which a section, and by the way a topic, has been taken into account during the evolution of a document.
The term 'sTR' has been introduced in order to identify those Technical Reports in the range 8, and sometimes the range 7. Technical Reports in this range are 3GPP internal working documents (of a given Release) for holding the interim results of feasibility studies about Technical Realization (Stage 2). Accordingly,the 3GPP documents, in the context of this site, are classified as follows:
"living" TS
"living" TR, or
sTR for Rel‑16 and after
"static" TS, i.e. upgraded unchanged with at least the last frozen release
"static" TR, i.e. upgraded unchanged with at least the last frozen release, or
sTR for Rel‑8 to Rel‑15
discontinued TS/TR, or
sTR before Rel‑8
Based on this classification, here are some statistics in regards to 3GPP-series.
21-series — Requirements
5★  16 TS
4★  59 TR
1★  12 sTR
22-series — Service aspects ("stage 1")
22★  62  1094 TS
1★  28  635 TR
23★  38  364 sTR
23-series — Technical realization ("stage 2")
48★  62  23133 TS
1★  8  1019 TR
24★  99  17140 sTR
24-series — Signalling protocols ("stage 3") - user equipment to network
38★  68  32139 TS
3  → 3 TR
1★  8  312 sTR
25-series — Radio aspects
15★  72  390 TS
17  2643 TR
25  5782 sTR
26-series — CODECs
23★  6992 TS
14★  31  348 TR
4★  913 sTR
27-series — Data
1★  6  18 TS
22 TR
28-series — Signalling protocols ("stage 3") - (RSS-CN) and OAMP and Charging (overflow from 32.- range)
47★  5198 TS
6★  511 sTR
29-series — Signalling protocols ("stage 3") - intra-fixed-network
77★  47  58182 TS
4  1216 TR
3★  24  633 sTR
30-series — Programme management
not covered
31-series — Subscriber Identity Module (SIM / USIM), IC Cards. Test specs
6★  11  522 TS
3  14 TR
44 sTR
32-series — OAMP and Charging
24★  118  172314 TS
1★  12 TR
1★  51  1264 sTR
33-series — Security aspects
30★  16  349 TS
2★  7  716 TR
9★  30  342 sTR
34-series — UE and (U)SIM test specifications
9★  3  618 TS
1  56 TR
35-series — Security algorithms
1818 TS
66 TR
36-series — LTE (Evolved UTRA), LTE-Advanced, LTE-Advanced Pro radio technology
38★  3674 TS
3★  912 TR
3★  155158 sTR
37-series — Multiple radio access technology aspects
28★  230 TS
2★  46 TR
4★  3640 sTR
38-series — Radio technology beyond LTE
62★62 TS
2★  46 TR
19★  1332 sTR
41-series — Requirements
1  12 TS
1  12 TR
42-series — Service aspects ("stage 1")
4  48 TS
43-series — Technical realization ("stage 2")
3★  16  221 TS
66 TR
44 sTR
44-series — Signalling protocols ("stage 3") - user equipment to network
1★  2223 TS
11 TR
45-series — Radio aspects
7★  411 TS
77 TR
1★  34 sTR
46-series — CODECs
2323 TS
33 TR
48-series — Signalling protocols ("stage 3") - (RSS-CN)
2★  1820 TS
49-series — Signalling protocols ("stage 3") - intra-fixed-network
1★  12 TS
1  12 TR
50-series — Programme management
not covered
51-series — Subscriber Identity Module (SIM / USIM), IC Cards. Test specs.
5★  2  512 TS
52-series — OAMP and Charging
33 TS
55-series — Security Algorithms
1212 TS
11 TR