name: PTK
full_form: ProSe Traffic Key
context: associated with the PDCP entity by one. If this causes the counter to wrap, then the ME shall behave as follows: - If PTK ID < 2^16-1, then the ME shall increase the PTK ID associated with the PDCP entity by one and set the counter associated with this PDCP entity to one. Furthermore for USIM storage of PTK ID, the ME shall increase the PTK ID stored on the USIM by 3 if it is less than 2^16-4 or to 2^16-1 otherwise if the stored PTK ID in USIM would be less than the one about to be used in ME. If non-volatile memory on the ME is used to store the PTK ID, the ME shall increase the PTK ID in non-volatile memory by one. - If PTK ID = 2^16-1 (i.e. PTK ID would wrap) and if the next PGK is previously unused (i.e. does not have the PTK ID and Counter in either the USIM or non-volatile memory of the ME associated with it), the ME shall act as though it just created a new PDCP entity with a previously unused PGK. - Otherwise (i.e. PTK ID = 2^16-1 and the next PGK has already been used in some
description: ProSe Traffic Key (PTK) is a parameter associated with the PDCP entity, used to manage the counter for encryption and decryption of user plane data. It is stored on the USIM or non-volatile memory of the ME and incremented under specific conditions.
explanation: The context describes PTK as an identifier associated with the PDCP entity, which is incremented under certain conditions. This behavior aligns with the characteristics of a parameter in telecommunications, specifically one that governs network operations.
section_title: 6.2.3.2	Identities
biotag_Context: O,O,O,B-Protocol,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,B-Parameter,B-Parameter,O,O,O,O,B-Network Function,O,O,O,B-Parameter,B-Parameter,O,O,O,B-Protocol,O,O,O,O,O,O,O,O,O,O,B-Protocol,O,O,O,O,O,B-Device,O,O,B-Parameter,O,O,B-Network Function,O,O,O,B-Parameter,B-Parameter,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,B-Parameter,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,B-Parameter,O,O,B-Network Function,O,O,O,B-Parameter,B-Parameter,O,O,O,O,O,O,O,B-Parameter,B-Parameter,O,O,O,B-Parameter,B-Parameter,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,B-Parameter,B-Parameter,O,O,O,O,O,B-Device,O,O,O,O,O,B-Network Function,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,B-Protocol,O,O,O,O,O,O,O,O,O,B-Parameter,B-Parameter,O,O,O,O,O,B-Parameter,O,O,O,O,O,O
biotag_Description: B-Parameter,I-Parameter,I-Parameter,O,O,O,O,O,O,O,B-Protocol,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,B-Network Function,O,O,O,O,O