name: LSB
full_form: Least significant bit
context: initiating UE receiving a DCR message from the peer UE1 creates a security context and saves the received MSB of Kd session ID. An LSB of Kd session is generated and saved into the security context. The LSB of Kd session is sent to the peer UE1 using DSM Command message. 3a. The initiating UE also receives a DCR message from the peer UE3. It creates another security context and saves the received MSB of Kd session ID. Another LSB of Kd session is generated and saved into this security context. The corresponding LSB of Kd session is sent to the peer UE3 using DSM Command message. 4. The peer UE1 updates its security context with the received LSB of Kd session ID and replies with a DSM Complete message. 4a. The peer UE3 also updates its security context with the received LSB of Kd session ID and replies with a DSM Complete message. 5. The initiating UE completes the unicast link establishment by sending a DCA message to the peer UE1. 5a. Same thing with the peer UE3, i.e. the initiating
description: The Least Significant Bit (LSB) is a critical network attribute used in the context of security context creation and session ID management within the 3GPP specification.
explanation: The LSB is classified as a Parameter because it refers to a specific bit value that is generated, saved, and exchanged between UEs during the process of creating and updating security contexts for unicast link establishment.
section_title: 6.2.2	Solution details
biotag_Context: O,B-Device,O,O,B-Message,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,B-Message,O,O,O,O,O,B-Device,O,O,O,B-Message,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,B-Message,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,B-Parameter,O,O,O,O,B-Message,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,B-Parameter,O,O,O,O,B-Message,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,B-Technology,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O
biotag_Description: O,B-Parameter,I-Parameter,I-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,B-Organization,O