Monday, November 23, 2015

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

Friday, November 20, 2015

RAN Work Group

This article is about RAN groups which are responsible for defining the spec.


RAN Working groups and Ad Hoc groups
TSG RAN Plenary
TSG RAN WG1Radio Layer 1 specification
TSG RAN WG2Radio Layer 2 and Radio Layer 3 RR specification
TSG RAN WG3Iub Iur and Iu specification - UTRAN O&M requirements
TSG RAN WG4Radio performance and protocol aspects (system) - RF parameters and BS conformance
TSG RAN WG5Mobile terminal conformance testing
TSG RAN AHG1Ad-hoc group on ITU (internal) co-ordination

Source: http://www.3gpp.org/specifications-groups/ran-plenary