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In our day‐to‐day life, we use different electronic gadgets just in a plug and play way. Similarly, one can remove a SIM card from a phone, insert it into another phone with a different make and model, and start using it. All these are possible only when those devices are designed and works based on certain standards/protocols. The network elements of a mobile communications network are also designed and work on certain protocols as defined by the 3GPP. A particular protocol layer, and its various aspects, as defined by the 3GPP, is identified under a standard terminology called “Technical specification”, or “TS” in short. There is another terminology called “Technical Report”, shortly called as “TR”. A TR is for an informational purpose which is the result of a study phase/item on a particular area. A TR, later on, may lead to a technical specification. A technical specification is a standard specification as a result of a work item based on a TR.

A sample cover page of a 3GPP technical specification is shown in Figure 2.16. Look at the information that is available on the cover page of a 3GPP technical specification; see Figure 2.16. For example, 3GPP TS 22.060: “General Packet Radio Service (GPRS); Service Description; Stage 1” and 3GPP TS 23.060: “General Packet Radio Service (GPRS); Service Description; Stage 2”; and so on.

To decode and derive the relevant information, one must be aware of the nomenclature being used to identify a TS. Meaning and decoding of the various information available in 3GPP technical specifications are described in the subsequent sections of this book. Visit the 3GPP site [2] to get familiarity with the nomenclature. Knowing the nomenclature and picking the correct 3GPP TS is very important from the conformance point of view.

Figure 2.16 Example of a cover page of a 3GPP technical specification.

Source: © 2012. 3GPP ™ TSs and TRs are the property of ARIB, ATIS, CCSA, ETSI, TSDSI, TTA and TTC who jointly own the copyright in them. © 2012, 3GPP.