name: ABBA
full_form: Anti-Bidding down Between Architectures
context: Nausf_UEAuthentication_Authenticate Response containing authentication result, SUPI and Kseaf (the anchor key). Further the SEAF sends the ABBA parameters, authentication result as success, and Kamf key to the Target AMF as in the existing system. As an alternative, if the AUSF in addition received ABBA in step 11a, the AUSF sends the ABBA received to SEAF and the SEAF is required to use the received ABBA. NOTE 1: The ABBA parameter usage can be same as in the existing system. TS 33.501 [3]specified the ABBA parameter value as '0x0000'. The UE uses the ABBA parameter provided by the SEAF in the calculation of KAMF as specified in TS 33.501 [3] clause A.7.1 ABBA parameter values. NOTE 2: For EAP-AKA', perform step 11 as specified in TS 33.501 [3] clause 6.1.3.1. For 5G AKA, perform step 12 as specified in TS 33.501 [3] clause 6.1.3.2.0. Step 15. The Target AMF on receiving the Kamf and authentication result can trigger the NAS Security mode command (NAS SMC) procedure with UE when
description: ABBA is a parameter used in the calculation of KAMF (Key Agreement Message Format) as defined in TS 33.501 clause A.7.1 ABBA parameter values. It is provided by the Serving Gateway Function (SEAF) to the User Equipment (UE) and has a specific value, '0x0000', as defined in TS 33.501.
explanation: The text explicitly states that ABBA is a parameter used in calculations with a defined value, indicating its role as a specific input for a technical process.
section_title: 6.6.2	Solution details
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biotag_Description: B-Parameter,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,B-Specification,O,O,O,B-Parameter,O,O,O,O,O,O,O,B-Network Function,I-Network Function,O,O,O,O,B-Device,I-Device,O,O,O,O,O,O,O,O,O,O,B-Specification,O