9.1.40 System information type 6

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 SACCH by the network to mobile stations within the cell giving information of location area identification, of cell identity and various other information. See table 9.1.40.1. If received correctly by the mobile station this message is treated as in sub-clauses 9.1.40.1 to 9.1.40.4.

This message has a L2 Pseudo Length of 11.

Message type: SYSTEM INFORMATION TYPE 6

Significance: dual

Direction: network to mobile station

Table 9.1.40.1: SYSTEM INFORMATION TYPE 6 message content

IEI	Information element	Type / Reference	Presence	Format	length
	L2 pseudo length	L2 pseudo length 10.5.2.19	M	V	1
	RR management Protocol Discriminator	Protocol Discriminator 10.2	M	V	1/2
	Skip Indicator	Skip Indicator 10.3.1	M	V	1/2
	System Information Type 6 Message Type	Message Type 10.4	M	V	1
	Cell Identity	Cell Identity 10.5.1.1	M	V	2
	Location Area Identification	Location Area Identification 10.5.1.3	M	V	5
	Cell Options	Cell Options (SACCH) 10.5.2.3	M	V	1
	NCC Permitted	NCC Permitted 10.5.2.27	M	V	1
	SI 6 Rest Octets	SI6 Rest Octets 10.5.2.35a	M	V	7

9.1.40.1 Cell Identity

Only applicable for mobile stations supporting SIM Application Toolkit class 2 or higher:

– if a new Cell Identity is identified, an indication shall be given to the upper layer together with the new identity.

Other mobile stations may ignore this IE.

9.1.40.2 Location Area Identification

Only applicable for mobile stations supporting VGCS listening and VBS listening or SIM Application Toolkit class 2 or higher or for mobile stations supporting CSG Cells Reporting.

For mobile stations supporting VGCS listening and VBS listening or SIM Application Toolkit class 2 or higher if a new Location Area Identification is identified, an indication shall be given to the upper layer together with the new identification.

Other mobile stations may ignore this IE.

9.1.40.3 Cell Options

When correctly received, this information shall be used as the current Cell Options information. Any change in the Cell Options shall overwrite any old Cell Options data held by the mobile station.

9.1.40.4 NCC permitted

As for BCCH Frequency List in SYSTEM INFORMATION TYPE 5.