name: MS
full_form: Mobile Station
context: The message sequence flow below describes the information transfer at initial connection establishment, authentication and start of integrity protection and ciphering (if used). Figure C.3-1: Integrity algorithm negotiation 1) MS sends an Attach request to the eSGSN. The cipher algorithms and integrity algorithms supported by the MSshall be included in the MS network capability parameters. The MS network capability shall contain one set of encryption algorithms and one set of integrity algorithms. Furthermore, the MS network capability optionally contains an indication that the MS supports user plane integrity. Editorâs note: It is FFS if the MS network capability needs to be sent in other messages than in Attach. Editorâs note: It is FFS whether the MS network capability shall support the optional inclusion of an additional parameter indicating that the MS requires the use of user plane integrity. 2) eSGSN obtains AVs (quintets) from HLR/HSS based on IMSI. 3) eSGSN checks for the
description: A Mobile Station (MS) is a device that connects to the network, enabling users to access telecommunications services. It is capable of sending and receiving data, and supports various algorithms for encryption and integrity protection.
explanation: The context explicitly mentions the MS as an entity that sends requests, includes its network capability parameters, and supports specific algorithms, indicating it is a device interacting with the network.
section_title: C.3		Ciphering and integrity mode negotiation
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biotag_Description: O,B-Device,I-Device,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