9.1.12 Classmark enquiry

3GPP44.018GSM/EDGE Radio Resource Control (RRC) protocolMobile radio interface Layer 3 specificationRelease 17TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

This message is sent on the main DCCH by the network to the mobile station to request classmark information and/or (for a multi-RAT mobile station) UTRAN information and/or CDMA2000 and/or GERAN Iu mode capability information. See table 9.1.12.1.

Message type: CLASSMARK ENQUIRY

Significance: dual

Direction: network to mobile station

Table 9.1.12.1: CLASSMARK ENQUIRY message content

IEI	Information element	Type / Reference	Presence	Format	length
	RR management	Protocol Discriminator 10.2	M	V	1/2
	Skip Indicator	Skip Indicator 10.3.1	M	V	1/2
	Classmark Enquiry Message Type	Message Type 10.4	M	V	1
10	Classmark Enquiry Mask	Classmark Enquiry Mask 10.5.2.7c	O	TLV	3