name: TVP
full_form: Time Variant Parameter
context: The security header is a sequence of the following data elements: Security header = TVP || NE-Id || Prop || Sending PLMN-Id || SPI || Original component Id - TVP: The TVP is used for replay protection of Secured MAP operations is a 32 bit time-stamp. The receiving network entity will accept an operation only if the time-stamp is within a certain time-window. The resolution of the clock from which the time-stamp is derived is 0.1 seconds. The size of the time-window at the receiving network entity is not standardised. - NE-Id: 6 octets used to create different IV values for different NEs within the same TVP period. It is necessary and sufficient that NE-Id is unique per PLMN. (This is sufficient because sending keys are unique per PLMN.) The NE-Id shall be the E.164 global title of the NE without the MCC and MNC. - Proprietary field (PROP): 4 octets used to create different IV values for different protected MAP messages within the same TVP period for one NE. The usage of the proprietary
description: A critical network attribute used for replay protection of Secured MAP operations, represented as a 32-bit time-stamp with a resolution of 0.1 seconds.
explanation: TVP is classified as a Parameter because it is a specific value used within a communication protocol (Secured MAP) to ensure security and prevent malicious replays.
section_title: 5.5.1	MAPsec security header
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biotag_Description: O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O