Before revision: An information element, sometimes informally referred to as a field, is an item in Q.931 messages, IEEE 802.11 management frames, and cellular network messages sent between a base transceiver station and a mobile phone or similar piece of user equipment.3GPP Technical Specification 24.007 as published by ETSI, Section 11.2.1 An information element is often a type-length-value item, containing 1) a type (which corresponds to the label of a field), a length indicator, and a value, although any combination of one or more of those parts is possible.
After revision: and Q.2931An information element, sometimes informally referred to as a field, is an item in Q.931 messages, IEEE 802.11 management frames, and cellular network messages sent between a base transceiver station and a mobile phone or similar piece of user equipment.3GPP Technical Specification 24.007 as published by ETSI, Section 11.2.1 An information element is often a type-length-value item, containing 1) a type (which corresponds to the label of a field), a length indicator, and a value, although any combination of one or more of those parts is possible.