Section: O.3 Information element identifier
Content: The information element identifier and its use are defined in 3GPP TS 24.007[ Mobile radio interface signalling layer 3; General Aspects ]  [20]. For the information elements defined in subclause O.4, the coding of the information element identifier bits is defined in table O.2/3GPP TS 24.008[ Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 ] . For a method to determine from the information element identifier whether an unknown information element is of type 1 or 2 (i.e. it is an information element of one octet length) or type 4 (i.e. the next octet is the length indicator indicating the length of the remaining of the information element) see 3GPP TS 24.007[ Mobile radio interface signalling layer 3; General Aspects ]  [20], subclause 11.2.4. Table O.1/3GPP TS 24.008[ Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 ] : Information element identifier coding for user-user protocol information elements