name: SAR
full_form: Security Assurance Requirements
context: request for uplink coverage enhancement. In this work item, we focus on the PC2 EN-DC RF requirements including UE maximum output power, Tx power tolerance, MPR, A-MPR, configured output power, ACLR, SAR and n41-B40 UE-UE co-existence for Power Class 2 EN-DC. There are two important issues that have been addressed in this topic, and in the end we have resolved them through appropriate solutions For SAR issue, RAN4 specified UE Tx duty cycle requirements sufficient to prevent exceeding local regulatory limits such as SAR for inter-band PC2 EN-DC UE. For PC2 EN-DC (TDD+TDD) release independent issue, RAN4 reached a conclusion that PC2 inter-band EN-DC (LTE TDD PC3 + NR TDD PC3) can be supported from Rel-15 in release independence manner. This WI was completed in the RAN#86 meeting and the complete version of NR Technical Report 37.825 has been approved. References List of related CRs: select "TSG Status = Approved" in: https://portal.3gpp.org/ChangeRequests.aspx?q=1&workitem=820079
description: SAR (Security Assurance Requirements) refers to a critical network attribute for ensuring the safety and regulatory compliance of user equipment (UE) in terms of radiofrequency exposure. It is a parameter that needs to be considered in the design and operation of telecommunications networks, particularly in relation to UE maximum output power and transmission characteristics.
explanation: The context describes SAR as a parameter that needs to be managed within the network to ensure safety and regulatory compliance related to radiofrequency exposure. This clearly classifies it as a 'Parameter' within the telecommunications domain.
section_title: 19.2.5	High power UE (power class 2) for EN-DC (1 LTE TDD band + 1 NR TDD band)
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