name: scf64
full_form: Scaling Factor 64
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 64 (scf64) is a value used in the prach-ConfigurationPeriodScaling-IAB-r16 enumeration, which is part of the RACH-ConfigGeneric information element. This parameter is utilized to configure the random-access parameters for beam failure recovery and regular random access in the Radio Resource Control (RRC) protocol. The scaling factor affects the periodicity of the random-access configuration, with scf64 being one of the possible values that can be selected.
explanation: scf64 is classified as a Parameter because it represents a specific value within an enumeration used to configure aspects of the RACH-ConfigGeneric information element. This parameter directly influences how random-access parameters are set up and managed in the context of beam failure recovery and regular random access, aligning with the detailed specifications provided in 3GPP TS 38.331 for efficient radio resource control.
section_title: â RACH-ConfigGeneric
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