So guys are you wondering how to read specifications, as I was. Here is something which I explored. First I will like to tell you the importance of these specifications then how to read or how to search the one which you need.
Specifications are very important for any engineering standard. For every standard different parameter like modulation techniques, channel characteristics etc are defined in their specification set. So by going through this specification we can figure out how a particular standard is implemented and what is presently going on with that standard like issues, research areas, practical values, constraints etc.
3GPP is the body which defines standards for 3G and 3G+ . All specification numbers for 3G and above are 4 or 5 digits. Eg. 09.02, 29.002 etc.
Take them as
XX.YY
Or XX.YYY
XX denotes series number
YY will be used when 01 < XX < 13
& YYY will be used when 21 < XX < 55
Every specification has title and specification group to define them. All the details related to specification groups, and abbreviations related to 3GPP can be found in specification no 21.905 (Vocabulary)
These specifications can be downloaded from the ftp site which is located here
Technical Reports are of two classes:
-
Those intended to be transposed and issued by the Organizational Partners as their own publications; and
-
Those not intended for publication but which are simply 3GPP internal working documents, used, for example, for documenting planning and scheduling of work, or for holding the interim results of feasibility studies.
The first category has numbers of the form: xx.9xx
The second category has numbers of the form: xx.8xx (feasibility study reports, etc) or, more rarely, 30.xxx / 50.xxx (planning and scheduling)
The filenames have the following structure:
SM[-P[-Q]]-V.zip
Where the character fields have the following significance …
S = series number – 2 characters (see the table above) M = mantissa (the part of the spec number after the series number) – 2 or 3 characters (see above) P = optional part number – 1 or 2 digits if present Q = optional sub-part number – 1 or 2 digits if present V = version number, without separating dots – 3 digits
So for example:
- 21900-320.zip is 3GPP TR 21.900 version 3.2.0
- 0408-6g0.zip is 3GPP TS 04.08 version 6.16.0
- 32111-4-410 is 3GPP TS 32.111 part 4 version 4.1.0
- 29998-04-1-100 is 3GPP TS 29.998 part 4 sub-part 1 version 1.0.0
One can go through the matrix which tells which number is associated with which title also one can go through another matrix which defines specifications title according to technology and numbers
To know about the freeze and release dates refer here
Specifications also tell the definitions and equations so do not miss them as they can be helpful while working with projects, just choose the specification number and download it from the server extract and read.
I will like to update the post with my studies, hope you will comment to fix the errors in this post and help me and others to learn.
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Author: Ashwini Patankar
