name: LWIP
full_form: LTE WLAN RAN Level Integration using IPSec
context: The eNB shall associate a 16-bit counter, LWIP counter, with the EPS AS security context. The LWIP counter is used when computing the LWIP-PSK for the IPSec tunnel set up. The UE and the eNB shall treat the LWIP counter as a fresh input to LWIP-PSK derivation. That is, the UE assumes that the eNB provides a fresh LWIP counter for each LWIP-PSK derivation and does not need to verify the freshness of the LWIP counter. The eNB maintains the value of the LWIP counter for a duration of the current AS security context between UE and eNB. The UE does not need to maintain the LWIP counter after it has computed the LWIP-PSK since the eNB provides the UE with the current LWIP counter value when the UE needs to compute a new LWIP-PSK. The eNB that supports the LWIP shall initialize the LWIP counter to '0' when the KeNB in the associated AS security context is established or refreshed. The eNB shall monotonically increment the LWIP counter for each subsequent calculation of the LWIP-PSK. If the
description: LWIP counter is a critical network attribute used in the computation of the LWIP-PSK for IPSec tunnel setup between the UE and eNB, ensuring secure communication.
explanation: The context explicitly mentions the LWIP counter as a '16-bit counter' associated with the EPS AS security context, highlighting its role in maintaining security. This classification is justified by the parameter's usage in deriving the LWIP-PSK and its maintenance by the eNB.
section_title: H.4.0	LWIP counter maintenance
biotag_Context: O,B-Network Function,O,O,O,O,O,B-Parameter,O,O,O,B-Network,B-Network Function,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,B-Network Function,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,B-Network Function,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,B-Network Function,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,B-Network Function,O,O,O,B-Device,O,O,O,B-Device,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,B-Device,O,O,O,B-Parameter,O,O,O,O,B-Device,O,O,O,O,O,O,O,B-Network Function,O,O,O,B-Parameter,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O
biotag_Description: B-Parameter,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