name: scf32
full_form: Scaling Factor 32
context: The IE RACH-ConfigGeneric is used to specify the random-access parameters both for regular random access as well as for beam failure recovery. RACH-ConfigGeneric information element -- ASN1START -- TAG-RACH-CONFIGGENERIC-START RACH-ConfigGeneric ::= SEQUENCE { prach-ConfigurationIndex INTEGER (0..255), msg1-FDM ENUMERATED {one, two, four, eight}, msg1-FrequencyStart INTEGER (0..maxNrofPhysicalResourceBlocks-1), zeroCorrelationZoneConfig INTEGER(0..15), preambleReceivedTargetPower INTEGER (-202..-60), preambleTransMax ENUMERATED {n3, n4, n5, n6, n7, n8, n10, n20, n50, n100, n200}, powerRampingStep ENUMERATED {dB0, dB2, dB4, dB6}, ra-ResponseWindow ENUMERATED {sl1, sl2, sl4, sl8, sl10, sl20, sl40, sl80}, ..., [[ prach-ConfigurationPeriodScaling-IAB-r16 ENUMERATED {scf1,scf2,scf4,scf8,scf16,scf32,scf64} OPTIONAL, -- Need R prach-ConfigurationFrameOffset-IAB-r16 INTEGER (0..63) OPTIONAL, -- Need R prach-ConfigurationSOffset-IAB-r16 INTEGER (0..39) OPTIONAL, -- Need R ra-ResponseWindow-v1610 ENUMERATED { sl60, sl160} OPTIONAL, -- Need R prach-ConfigurationIndex-v1610 INTEGER (256..262) OPTIONAL -- Need R ]], [[ ra-ResponseWindow-v1700 ENUMERATED {sl240, sl320, sl640, sl960, sl1280, sl1920, sl2560} OPTIONAL -- Need R ]] } -- TAG-RACH-CONFIGGENERIC-STOP -- ASN1STOP
description: Scaling Factor 32 (scf32) is a value within the prach-ConfigurationPeriodScaling-IAB-r16 enumeration, which is an optional information element in the RACH-ConfigGeneric sequence. This parameter is used to specify the scaling factor for the PRACH configuration period in the context of Integrated Access and Backhaul (IAB) for 5G New Radio (NR). The scaling factors available are scf1, scf2, scf4, scf8, scf16, scf32, and scf64. This parameter is crucial for configuring the PRACH in IAB scenarios to ensure efficient random access and beam failure recovery.
explanation: scf32 is classified as a Parameter because it represents a specific value within an enumeration that configures a particular aspect of the RACH-ConfigGeneric, which is used to manage random-access parameters. This classification aligns with the context provided from the 3GPP TS 38.331 specification, highlighting its role in adjusting PRACH configuration periods for IAB operations.
section_title: â RACH-ConfigGeneric
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