LTE Procedure's

All the Procedure's for an LTE UE in CS and PS mode along with multi RAB combination are as below.

Spec: 34.108

7.3.2.3.1 For UE Supporting CS
Step	Direction		Message	Comments
	UE	SS
1			SYSTEM INFORMATION (BCCH)	Broadcast
2			PAGING TYPE1 (PCCH)	Paging (CS domain, TMSI)
3			RRC CONNECTION REQUEST (CCCH)	RRC
4			RRC CONNECTION SETUP (CCCH)	RRC
5			RRC CONNECTION SETUP COMPLETE (DCCH)	RRC
6			PAGING RESPONSE	RR
7			AUTHENTICATION REQUEST	MM
8			AUTHENTICATION RESPONSE	MM
9			SECURITY MODE COMMAND	RRC
10			SECURITY MODE COMPLETE	RRC
11			ACTIVATE RB TEST MODE	TC
12			ACTIVATE RB TEST MODE COMPLETE	TC
13			RADIO BEARER SETUP	RAB SETUP
14			RADIO BEARER SETUP COMPLETE	RRC
15			CLOSE UE TEST LOOP (DCCH)	TC (UE test loop mode set up)
16			CLOSE UE TEST LOOP COMPLETE	TC (confirms that loopback entities for the radio bearer(s) have been created and loop back is activated)
17			OPEN UE TEST LOOP	TC
18			OPEN UE TEST LOOP COMPLETE	TC
19			RRC CONNECTION RELEASE	RRC
20			RRC CONNECTION RELEASE COMPLETE	RRC
7.3.2.3.2 For UE supporting PS only
Step	Direction		Message	Comments
	UE	SS
1			SYSTEM INFORMATION (BCCH)	Broadcast
2			PAGING TYPE1 (PCCH)	Paging (PS domain, P-TMSI)
3			RRC CONNECTION REQUEST (CCCH)	RRC
4			RRC CONNECTION SETUP (CCCH)	RRC
5			RRC CONNECTION SETUP COMPLETE (DCCH)	RRC
6			SERVICE REQUEST	GMM
7			AUTHENTICATION AND CIPHERING REQUEST	GMM
8			AUTHENTICATION AND CIPHERING RESPONSE	GMM
9			SECURITY MODE COMMAND	RRC
10			SECURITY MODE COMPLETE	RRC
11			ACTIVATE RB TEST MODE	TC
12			ACTIVATE RB TEST MODE COMPLETE	TC
13			RADIO BEARER SETUP	RRC (RAB SETUP)
14			RADIO BEARER SETUP COMPLETE	RRC
15			CLOSE UE TEST LOOP (DCCH)	TC (UE test loop mode set up)
16			CLOSE UE TEST LOOP COMPLETE	TC (confirms that loopback entities for the radio bearer(s) have been created and loop back is activated)
17			OPEN UE TEST LOOP TC	TC
18			OPEN UE TEST LOOP COMPLETE	TC
19			RC CONNECTION RELEASE	RRC
20			RC CONNECTION RELEASE COMPLETE	RRC
7.3.2.3.3 For CS+PS multi RAB combination
Step	Direction		Message	Comments
	UE	SS
1			SYSTEM INFORMATION (BCCH)	Broadcast
2			PAGING TYPE1 (PCCH)	Paging (CS domain, TMSI)
3			RRC CONNECTION REQUEST (CCCH)	RRC
4			RRC CONNECTION SETUP (CCCH)	RRC
5			RRC CONNECTION SETUP COMPLETE (DCCH)	RRC
6			PAGING RESPONSE	RR
7			AUTHENTICATION REQUEST	MM
8			AUTHENTICATION RESPONSE	MM
9			SECURITY MODE COMMAND	RRC
10			SECURITY MODE COMPLETE	RRRC
11			PAGING TYPE2 (DCCH)	TMSI(GSM-MAP)/P-TMSI
12			SERVICE REQUEST	GMM
13			SECURITY MODE COMMAND	RRC
14			SECURITY MODE COMPLETE	RRC
15			ACTIVATE RB TEST MODE	TC
16			ACTIVATE RB TEST MODE COMPLETE	TC
17			RADIO BEARER SETUP	RRC CS radio bearer(s) are configured
18			RADIO BEARER SETUP COMPLETE	RRC
19			RADIO BEARER SETUP	RRC PS radio bearer(s) are configured
20			RADIO BEARER SETUP COMPLETE	RRC
21			CLOSE UE TEST LOOP (DCCH)	TC (UE test loop mode set up)
22			CLOSE UE TEST LOOP COMPLETE	TC (confirms that loopback entities for the radio bearer(s) have been created and loop back is activated)
23			OPEN UE TEST LOOP	TC
24			OPEN UE TEST LOOP COMPLETE	TC
25			RRC CONNECTION RELEASE	RRC
26			RRC CONNECTION RELEASE COMPLETE	RRC

Link http://www.etsi.org/deliver/etsi_ts/134100_134199/134108/12.01.00_60/ts_134108v120100p.pdf