9.1.56 Service Information message

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

This message is sent on the main DCCH by an MBMS capable mobile station, in class A mode of operation, to the network to indicate support of MBMS and additionally indicating whether the mobile station has joined an MBMS service. See table 9.1.56.1.

Message type: SERVICE INFORMATION

Significance: dual

Direction: mobile station to network

Table 9.1.56.1: Service Information message content

IEI	Information element	Type / Reference	Presence	Format	length
	RR management Protocol Discriminator	Protocol Discriminator 10.2	M	V	1/2
	Skip Indicator	Skip Indicator 10.3.1	M	V	1/2
	Service Information Message Type	Message Type 10.4	M	V	1
	Temporary Logical Link Identity	TLLI 10.5.2.41a	M	V	4
	Routeing Area Identification	Routeing Area Identification 10.5.5.15	M	V	6
	Service Support	Service Support 10.5.2.57	M	V	1

9.1.56.1 Temporary Logical Link Identity

This information element contains the TLLI derived from the P-TMSI, see 3GPP TS 23.060. The network shall accept a local TLLI even if the current RA where the message is received differs from the one indicated in this message.

9.1.56.2 Routeing Area Identification

This information element shall contain the stored routeing area identification (e.g. received in the last attach or routeing area update procedure, see 3GPP TS 24.008).