name: BEM
full_form: Block Edge Mask
context: OPTIONAL, iE-Extensions ProtocolExtensionContainer { { Non-Dynamic5QIDescriptor-ExtIEs } } OPTIONAL } Non-Dynamic5QIDescriptor-ExtIEs E1AP-PROTOCOL-EXTENSION ::= { { ID id-CNPacketDelayBudgetDownlink CRITICALITY ignore EXTENSION ExtendedPacketDelayBudget PRESENCE optional }| { ID id-CNPacketDelayBudgetUplink CRITICALITY ignore EXTENSION ExtendedPacketDelayBudget PRESENCE optional }, ... } NPNSupportInfo ::= CHOICE { sNPN NPNSupportInfo-SNPN, choice-extension ProtocolIE-SingleContainer {{NPNSupportInfo-ExtIEs}} } NPNSupportInfo-ExtIEs E1AP-PROTOCOL-IES ::= { ... } NPNSupportInfo-SNPN ::= SEQUENCE { nID NID, iE-Extensions ProtocolExtensionContainer { { NPNSupportInfo-SNPN-ExtIEs } } OPTIONAL } NPNSupportInfo-SNPN-ExtIEs E1AP-PROTOCOL-EXTENSION ::= { ... } NPNContextInfo ::= CHOICE { sNPN NPNContextInfo-SNPN, choice-extension ProtocolIE-SingleContainer {{NPNContextInfo-ExtIEs}} } NPNContextInfo-ExtIEs E1AP-PROTOCOL-IES ::= { ... } NPNContextInfo-SNPN ::= SEQUENCE { nID NID, iE-Extensions
description: The Block Edge Mask (BEM) is a regulatory limit set by CEPT ECC decision (13)03. It specifies the maximum allowed Equivalent Isotropically Radiated Power (EIRP) for base stations operating in the downlink band within 1452-1492 MHz in Region 1. BEM applies to both E-UTRA and UTRA technologies, aiming to prevent unwanted emissions and spurious emissions.
explanation: BEM is classified as a Regulatory Requirement because it is a rule or standard imposed by a regulatory body (CEPT ECC) to control and manage telecommunications operations. It defines a specific limit (EIRP) that base stations must adhere to within a defined frequency range, ensuring compliance with electromagnetic interference regulations.
section_title: 7.6.1. 	BS operating band unwanted emission and spurious emissions in Region 1
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