name: UI
full_form: User Interaction
context: by the "unprotected mode" (where messages with erroneous FCS fields are delivered to the upper layer), the control field of UI frame is enhanced by a new Integrity Mode (IM) bit. The control field bits also include the Integrity protection (I) bit if integrity protection is in use, and FCS field is replaced by MAC. Figure 6.8.2-2 demonstrates a potential implementation of these new bits. Figure 6.8.2-2: New control bits related to integrity protection Integrity protection bit (I) If integrity protection is in use, the integrity protection bit (I) indicates that the three octets long FCS field has been replaced by four octets long MAC. The I bit is set to 1 to indicate the presence of four octets long MAC. FCS field is not present. The I bit value 0 is not specified. Integrity Mode bit (IM) If integrity protection is in use, the integrity mode bit (IM) indicates the behaviour of the LLC layer at the receiving side if the MAC verification fails. The IM bit replaces PM bit in legacy UI
description: User Interaction (UI) refers to a protocol or set of rules governing data transmission between network layers, particularly within the context of integrity protection and Layer 2 (LLC) behavior. It defines control field bits like the Integrity Mode (IM) bit and Integrity Protection (I) bit used for MAC verification and FCS replacement.
explanation: The description explicitly states that UI is a 'protocol' and outlines its function in defining data transmission rules, specifically related to integrity protection within telecommunications networks. This classification aligns with the standard definition of a protocol as a set of rules governing communication.
section_title: 6.8.2	Integrity protection bit, integrity mode bit and MAC
biotag_Context: O,O,O,O,O,O,O,O,B-Procedure,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Procedure,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Procedure,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Procedure,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Protocol,O,O,O,O,O,O,O,B-Protocol,O,O,O,B-Service,O,O,B-Service,O,O,O,B-Parameter
biotag_Description: B-Parameter,I-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Protocol,I-Protocol,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Protocol,O,O,B-Procedure,O