03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
description
Transcript of 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
1/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
www.huawei.com
OWA210001 WCDMA
UTRAN Interface and
Signaling Procedure
ISSUE 1.0
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
2/83HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 1
Upon completion of this course, you
will be able to:
Understand UTRAN interface and
structure
Understand the definitions about
UTRAN network elements
Understand UTRAN signaling
procedure
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
3/83HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 2
Chapter 1 UTRAN Network Overview
Chapter 2 Basic Concepts about UTRAN
Chapter 3 UTRAN Signaling Procedure
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
4/83HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 3
The Position of UTRAN in WCDMA Network
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
5/83HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 4
UMTS Construction
UTRAN UMTS Terrestrial Radio Access Network
CN Core Network
UE User Equipment
Iu
UTRAN
UEUu
CN
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
6/83HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 5
UMTS Structure
RNS
RNC
RNS
RNC
Core Network
Node B Node B Node B Node B
Iu Iu
Iur
Iub IubIub Iub
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
7/83HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 6
Uu Interface
L3
control
control
control
Logical
Channels
Transport
Channels
C-plane signalling U-plane information
PHY
L2/MAC
L1
RLC
DCNtGC
L2/RLC
MAC
RLCRLC
RLC
RLC
RLCRLC
RLC
Duplication avoidance
UuS boundary
BMC L2/BMC
control
PDCPPDCP L2/PDCP
DCNtGC
Radio
Bearers
RRC
control
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
8/83HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 7
General Protocol Mode for UTRAN Terrestrial Interface
The structure is based on the principle that the layers and planes are
logically independent of each other.
ApplicationProtocol
DataStream(s)
ALCAP(s)
TransportNetwork
Layer
Physical Layer
SignallingBearer(s)
TransportUser
NetworkPlane
Control Plane User Plane
TransportUser
NetworkPlane
Transport NetworkControl Plane
RadioNetwork
Layer
SignallingBearer(s)
DataBearer(s)
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
9/83HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 8
RNL Control Plane Application Protocol
NBAPNode B Application PartRANAPRadio Access Network Application Part
RNSAPRadio Network Subsystem Application Part
RRC Radio Resource Control
Node B
RNC
CN
UE
RANAP
NBAP
RNSAPRRCRNC
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
10/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 9
Iu-CS Interface
Q.2150.1
Q.2630.1
RANAPIu UP Protocol
Layer
Transport
Network
Layer
Transport Network
User Plane
Control Plane User Plane
Transport Network
User PlaneTransport Network
Control Plane
Radio
Network
Layer
SSCOP
AAL5
SSCOP
SSCF-NNI
AAL2AAL5
MTP3bMTP3b
SCCP
SSCF-NNI
Physical Layer
ATM
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
11/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 10
Iu-PS Interface
SSCF-NNI
SSCOP
AAL5
IP
SCTP
SCCP
SSCF-NNI
MTP3-B
M3UA
Physical Layer
Control Plane User Plane
ATM
AAL5
IP
UDP
GTP-U
Physical Layer
ATM
Transport
Network
Layer
Transport Network
Control Plane
Radio
Network
Layer
RANAP Iu UP ProtocolLayer
Transport Network
User Plane
Transport Network
User Plane
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
12/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 11
Iub Interface
Node B
Application Part
(NBAP)
AAL Type 2
ALCAP
Transport
Layer
Radio
Network
Layer
Radio Network
Control Plane
Transport
Network
Control Plane
DCHFP
RACHFP
ATM
DSCHFP
AAL Type 5
User Plane
SSCF-UNI
SSCOP
AAL Type 5
SSCF-UNI
SSCOP
Q.2630.1
Q.2150.2
FACHFP
PCHFP
USCHFP
CPCHFP
Physical Layer
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
13/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 12
Iur Interface
SSCF-NNI
SSCOP
MTP3-B
AAL5
IP
SCTP
SCCP
AAL5
STC (Q.2150.1)
RNSAPIur Data
Stream(s)
Physical Layer
Control Plane User Plane
ATM
ALCAP(Q.2630.1)
AAL2
SSCF-NNI
SSCOP
MTP3-B
IP
SCTP
M3UAM3UA
Transport
Network
Layer
Transport Network
Control Plane
Radio
NetworkLayer
Transport Network
User Plane
Transport Network
User Plane
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
14/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 13
Chapter 1 UTRAN Network Overview
Chapter 2 Basic Concepts about UTRAN
Chapter 3 UTRAN Signaling Procedure
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
15/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 14
SRNC/DRNC
SRNC and DRNC are on a per connection basis between a UE and
the UTRAN
The SRNC handles the connection to one UE, and may borrow
radio resources of a certain cell from the DRNC Drift RNCs support the Serving RNC by providing radio resources
A UE in connection state has at least one and only one SRNC, but
can has 0 or multiple DRNCs
CN
SRNC DRNC
IuIur
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
16/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 15
CRNC
The CRNC owns the radio resources of a cell
Dynamical control of power for dedicated channels, within limits
admitted by CRNC, is done by the SRNC.
Scheduling of data for dedicated channels is done by the SRNC,
while for common channels it is done by the CRNC
Iub
Node B
Cell Cell Cell
Node B
...
Iu
CRNC
CN
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
17/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 16
RAB, RB and RL
RAB
RB
RLNodeB
RNC CNUE
UTRAN
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
18/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 17
UE Working Modes and States
Idle mode
Connected mode
Cell_DCH
Cell_FACH
Cell_PCH
URA_PCH
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
19/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 18
Idle Mode
The UE has no relation to UTRAN, only to CN. For data transfer, asignalling connection has to be established.
UE camps on a cell
It enables the UE to receive system information from the PLMN
When registered and if the UE wishes to establish an RRC connection,
it can do this by initially accessing the network on the control channel ofthe cell on which it is camped
UE can receive "paging" message from control channels of the cell.
It enables the UE to receive cell broadcast services.
The idle mode tasks can be subdivided into three processes:
PLMN selection and reselection;
Cell selection and reselection;
Location registration.
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
20/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 19
Connected Mode
When at least one signalling connection exists, the UE is in connected
mode and there is normally an RRC connection between UE and UTRAN.
The UE position can be known on different levels:
UTRAN Registration Area (URA) level
The UE position is known on URA level. The URA is a set of cells
Cell level
The UE position is known on cell level. Different transport channel
types can be used for data transfer:
Common transport channels (RACH / FACH, DSCH, CPCH)
Dedicated transport channels (DCH)
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
21/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 20
Cell-DCH
In active state
Communicating via its dedicated channels
UTRAN knows which cell UE is in.
Connected Mode
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
22/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 21
Cell-FACH
In active state
Few data to be transmitted both in uplink and in downlink. Thereis no need to allocate dedicated channel for this UE.
Downlink uses FACH and uplink uses RACH.
UE need to monitor the FACH for its relative information.
UTRAN knows which cell UE is in.
Connected Mode
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
23/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 22
Cell-PCH
No data to be transmitted or received.
Monitor PICH, to receive its paging.
lower the power consumption of UE.
UTRAN knows which cell UE is in.
UTRAN have to update cell information of UE when UE
roams to another cell
Connected Mode
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
24/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 23
URA-PCH
No data to be transmitted or received.
Monitor PICH.
UTRAN only knows which URA (UTRAN Registration Area,
which consists of multiple cells) that UE is in.
UTRAN updates UE information only after UE has roamed to
other URA.
A better way to reduce the resource occupancy and signaling
transmission
Connected Mode
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
25/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 24
UE States
CELL_DCH CELL_FACH
CELL_PCHURA_PCH
IDLE
DEAD - Scanning networks (PLMN)- Camp on cell
- Monitor paging channel
- cell re-selection
- Dedicated Channel- Radio bearers Transmission Services
- upper layer Signalingtrigger (CN)
- Reduce actionDTXand save power
RRC con nect ion
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
26/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 25
RNTI - Radio Network Temporary Identifier
Five Types of RNTI exist
Serving RNC RNTI (S-RNTI)
Drift RNC RNTI (D-RNTI)
Cell RNTI (C-RNTI)
UTRAN RNTI (U-RNTI)
HS-DSCH RNTI (H-RNTI)
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
27/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 26
Chapter 1 UTRAN Network Overview
Chapter 2 Basic Concepts about UTRAN
Chapter 3 UTRAN Signaling Procedure
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
28/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 27
Chapter 3 UTRAN Signaling Procedure
Section 1 Cell Setup
Section 2 System Information Broadcast
Section3 Paging
Section4 Call Process
Section5 Handover
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
29/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 28
Cell Setup
NBAP
NBAP
NBAP
NBAP
NBAP
NBAP
NBAP
NBAP
NBAP
NBAP
NCP: Resource Status Ind
NCP: Audit Req
NCP: Cell Setup Req
NCP: Cell Setup Rsp
NBAPNBAP NCP: Comm TrCh Setup Req
NBAPNBAP NCP: Comm TrCh Setup Rsp
Q.AAL2
Q.AAL2
Q.AAL2
Q.AAL2
Est Req
Est Conf
RNC NodeB
NCP: Audit Rsp
NBAPNBAP NCP: Comm TrCh Setup Req
NBAPNBAP NCP: Comm TrCh Setup Rsp
Q.AAL2
Q.AAL2
Q.AAL2
Q.AAL2
Est Req
Est Conf
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
30/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 29
Chapter 3 UTRAN Signaling Procedure
Section 1 Cell Setup
Section 2 System Information Broadcast
Section3 Paging
Section4 Call Process
Section5 Handover
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
31/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 30
System Information Broadcast Flow
3.BCCH:System Information
1.System Information Update Request
UE Node B RNC CN
NBAPNBAP
RRCRRC
4.BCCH:System InformationRRCRRC
5.BCCH:System Information RRCRRC
2.System Information Update Response
NBAPNBAP
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
32/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 31
Introduction of System Information
MIBContains PLMN tag and SB (scheduling information block) or thescheduling information for SIB (system info block)
SB1Contains scheduling information for SIB
SB2Contains scheduling information for SIB
SIB1Contains the system information for NAS and the timer/counter for UE
SIB2
Contains the URA informationSIB3
Contains the parameters for cell selection and cell re-selection
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
33/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 32
Introduction of System Information
SIB4Contains parameters for cell selection and cell re-selection while UE is inconnecting mode
SIB5Contains parameters for the common physical channels of the cell
SIB6Contains parameters for the common physical channels of the cell whileUE is in connecting mode
SIB7Contains the uplink interference level and the refreshing timer for SIB7
SIB8Contains the CPCH static information
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
34/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 33
Introduction of System Information
SIB9Contains the CPCH dynamic information
SIB10Contains information to be used by UEs having their DCH controlledby a DRAC procedure
Used in FDD mode onlyTo be used in CELL_DCH state onlyChanges so often, its decoding is controlled by a timer
SIB11Contains measurement controlling information
SIB12
Contains measurement controlling information in connecting mode
SIB13Contains ANSI-41 system information
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
35/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 34
Introduction of System Information
SIB14:Contains the information in TDD mode
SIB15:Contains the position service information
SIB16:Contains the needed pre-configuration information for handover fromother RAT to UTRAN
SIB17:Contains the configuration information for TDD
SIB18:Contains the PLMN identities of the neighboring cellsTo be used in shared networks to help with the cell reselection process
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
36/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 35
System Information Block Type 1
System information type 1 The NAS system information
CS domain DRXK6then DRXperiod is 2^k = 2 ^ 6 = 64 TTI = 640ms
PS domain DRXK6then DRXperiod is 2^k = 2 ^ 6 = 64 TTI = 640
ms The different timers for UE in
connecting mode and idle mode.
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
37/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 36
System Information Block Type 2
System info type 2
URA information
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
38/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 37
System Information Block Type 3
The references for cell selection
and re-selection
Qhyst2s
Sintrasearch
Sintersearch
SinterRatsearch
Qqualmin
Qrxlemin
T reselection
Max Allowed UE TX power
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
39/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 38
System Information Block Type 5
The configuration information for
the following physical channels
and the counterpart transport
channels
PICH
AICH
PCCPCH
PRACH
SCCPCH
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
40/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 39
System Information Block Type 7 and 11
System info type 7
Including the UL interference level which is used for open
loop power control:
Preamble_Initial_Power=Primary CPICH DL TX power -
CPICH_RSCP + UL interference + Constant Value
Including the Expiration Time Factor which is used for
refreshing the SIB7 periodically
System info type 11
The neighbor cell information for cell re-selection in IDLEmode.
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
41/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 40
Chapter 3 UTRAN Signaling Procedure
Section1 Cell Setup
Section2 System Information Broadcast
Section 3 Paging
Section4 Call Process
Section5 Handover
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
42/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 41
Paging Caused by CN
PS Paging Without RRC Connection for CS
SGSNUE NodeB
1 RNC1
RANAP
NodeB
2 RNC2
RANAP
MSC/VLR
RANAP
RANAPPaging
Paging
RRC
RRCPaging Type 1RRC
Paging Type 1
UE RNC1
RANAP
MSC/VLR
RANAPPaging
SGSN
PS Paging With RRC Connection for CS
RRC Connection Establish
NodeB
1
RRCPaging Type 2RRC
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
43/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 42
Paging Caused by CN
The paging information type which is sent by UTRAN is
decided by UE mode.
If UE is in the CELL_FACH or CELL_DCHUTRAN send
paging type 2. In other modes, the paging information is
type 1 and UE can use DTX method to detecting PICH.
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
44/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 43
Paging Caused by UTRAN
UE RNC1NodeB1
RRCPagingType1RRC
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
45/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 44
Chapter 3 UTRAN Signaling Procedure
Section 1 Cell Setup
Section2 System Information Broadcast
Section3 Paging
Section 4 Call Process
Section5 Handover
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
46/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 45
Introduction of Call Process
In WCDMA system, a call process includes the following
basic signaling flows:
RRC connection flow
Iu interface signaling flow
Authentication flow (optional)
Security flow (optional)
RAB establish flow
Call proceeding
NAS signaling before correlative bearer release
Correlative bearer release
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
47/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 46
RRC Connection Establishment Flow (DCH)
When UE is in IDLE mode and the NAS of UE request the signaling connection, UE will send a RRC Connection Request.
Each UE only can have on RRC Connection. The main function is to configure the signaling channel of UTRAN.
1. CCCH: RRC Connection Request
5. Downlink Synchronisation
UENode B
Serving RNS
Serving
RNC
DCH - FP
Allocate RNTISelect L1 and L2parameters
RRCRRC
NBAPNBAP
3. Radio Link Setup Response
NBAPNBAP2. Radio Link Setup Request
RRCRRC7. CCCH: RRC Connection Set up
Start RXdescription
Start TXdescription
4. ALCAP Iub Data Transport Bearer Setup
RRCRRC9. DCCH: RRC Connection Setup Complete
6. Uplink Synchronisation
NBAPNBAP8. Radio Link Restore Indication
DCH - FP
DCH - FP
DCH - FP
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
48/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 47
Iu Interface Signaling Connection Establish
In Iu interface, radio network layer reports the
RANAP information and NAS information.
NAS information is taken as directed
message in RANAP information.
And the process of Iu signaling connection is
to establish the Iu interface connection of
SCCP between RNC and CN.
UE Node B RNC CN
RRCRRC
SCCP SCCP
SCCP SCCP
Initial DT
Initial UE message (Connect
Request)
Connect Confirm
RANAP
Transport Network
User Plane
Control Plane
SSCOP
AAL5
MTP3b
SCCP
SSCF-NNI
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
49/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 49
Authentication and Security Flow
UE RNC CN
RRC Connection Setup
Initial DTInitial UE Message
DL DT (Authentication
Request)DL DT (AuthenticationRequest)
DL DT (Authentication
Request) DL DT (Authentication
Request)
Common ID
Security Mode CommandSecurity Mode Command
Security Mode Command
Security Mode Command
RAB Assignment
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
50/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 50
Common ID
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
51/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 51
RAB Establishment Flow
NodeBUE CNRNC
RANAPRANAPRAB Ass Req
Q.AAL2 Q.AAL2
Q.AAL2Q.AAL2
NBAPNBAP
AAL2 Setup Req
RL Recfg Prep
AAL2 Setup Rep
NBAPNBAPRL Recfg Ready
Q.AAL2Q.AAL2AAL2 Setup Req
Q.AAL2Q.AAL2AAL2 Setup Rep
FPFPDL Sync
FPFPUL Sync
RRC RRCRB Setup
NBAPNBAPRL Recfg Commit
RRC RRCRB Setup Complete
RANAPRANAPRAB Ass Rep
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
52/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 52
NAS Signaling (CS)
UE Terminating Call
UE MSC
CM Service Request
RRC and NAS signaling Connection Setup
Authentication Request
Authentication Response
Security Mode Command
Security Mode Command
RAB Assignment
Setup
Call Proceeding
Alerting
Connect
Connect ACKDisconnect
Release
Release Complete
UE Outgoing Call
UE MSC
Paging Response
Authentication Request
Authentication Response
Security Mode Command
Security Mode Command
RAB Assignment
Setup
Call Confirmed
Alerting
Connect
Connect ACK
Disconnect
Release
Release Complete
Paging
RRC and NAS signaling Connection Setup
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
53/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 53
NAS Signaling (PS)
UE MSC
CM Service Accept
Service Request
RRC
Activate PDP Context Req
Activate PDP Context Accept
RAB
Deactivate PDP Context Req
Deactivate PDP Context Accept
UE Outgoing Call
UE MSC
Service Request
RRC
Request PDP Context Activation
Activate PDP Context Req
RAB
UE Terminating Call
Paging
Authenticate and ciphering Req
Authenticate and ciphering Rsp Authenticate and ciphering Req
Authenticate and ciphering Rsp
Activate PDP Context Accept
Deactivate PDP Context Req
Deactivate PDP Context Accept
SGSN SGSN
RRC connection and NAS signaling
connection establishment RRC connection and NAS signaling
connection establishment
Security Mode
Security Mode
RAB establishment
RAB establishment
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
54/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 54
UE to UE (1)
Ori UE Ter UENodeB1 NodeB2RNC1 CN RNC2
1.RRC Connect Setup Req
2.RL Setup Req
3.RL Setup Rsp
4.AAL2 Setup Req
5.AAL2 Setup Rsp
6.DL Sync
7.UL Sync
8.RRC Connect Setup
9.RRC Connect Setup Cmp
10.Initial DT
11.InitUE(CM
ServiceReq)
12.DT(AuthenticaReq)
15.DT(Authentica
Rsp)
13.DL DT
14.UL DT
RANAP
RRCRRC
NBAPNBAP
NBAPNBAP
Q.AAL2Q.AAL2
Q.AAL2Q.AAL2
FPFP
FPFP
RRCRRC
RRCRRC
RRCRRC
RANAP
RANAP RANAP
RRC RRC
RRCRRC
RANAP RANAP
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
55/83
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
56/83
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
57/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 57
UE to UE (5)
Ori UE Ter UENodeB1 NodeB2RNC1 CN RNC2
RANAP RANAP64.RAB Ass Req
NBAPNBAP
70.RL Recfg
Ready NBAPNBAP
69.RL RecfgPrep
Q.AAL2 Q.AAL2
72.AAL2
Setup RspQ.AAL2 Q.AAL2
71.AAL2
Setup Req
FPFP 73.DL Sync
FPFP 74.UL Sync
RRC RRC75.RBSetup
Q.AAL2 Q.AAL265.AAL2 Setup
Req
Q.AAL2 Q.AAL266.AAL2 Setup
ConfFPFP 67.DL Sync
FPFP 68.UL Sync
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
58/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 58
UE to UE (6)Ori UE Ter UENodeB1 NodeB2RNC1 CN RNC2
NBAPNBAP76.RLRcfg
Commit
RRC RRC77.RB Setup Complete
RANAP RANAP78.RAB Ass
Rsp
RRC RRC79.UL DT
RANAP RANAP80.DT(Alerti
ng)
RANAP RANAP81.DT(Alerting)
RRC RRC82.DL DT
RRC RRC83.UL DT
RANAP RANAP84.DT(Connec
t)
RANAP RANAP85.DL
DT(Connect)
RRC RRC86.DL DT
RRC RRC87.UL DT
RANAP RANAP
RANAP RANAP
RRC RRC
88.UL DT
89.DT(Connec
t Ack)
90.DLDT
Alerting
Connect
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
59/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 59
UE to UE (7)Ori UE Ter UENodeB1 NodeB2RNC1 CN RNC2
RANAP RANAP92.DT(Disconne
ct)
RRC RRC91.UL DT
RANAP RANAP
96.DT
(Disconnect
)
RRC RRC97.DLDT
RRC RRC98.UL DT
RANAP RANAP99.DT
(Release)
RANAP RANAP93.DT(Release)
RRC RRC94.DL DT
RRC RRC95.UL DT
RANAP RANAP102.DT(Release Ack)
RANAP RANAP100.DT
(Rel Comp)
RRC RRC101.DL DT
RANAP RANAP103.IU Rel
Cmd
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
60/83
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
61/83
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
62/83
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
63/83
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
64/83
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
65/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 65
Chapter 3 UTRAN Signaling Procedure
Section 1 Cell Setup
Section2 System Information Broadcast
Section3 Paging
Section4 Call Process
Section 5 Handover
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
66/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 66
Concepts about Soft Handover
Soft handover: the signals from different NodeBs are merged
in RNC.
Softer handover: the signals from different cells, but from the
same NodeB are merged in NodeB.
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
67/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 67
Node B
RNC
AirBridge
AirBridge
AirBridge
Soft Handover Flow
Core Network
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
68/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 68
Node B
RNC
AirBridge
AirBridge
AirBridge
Merged in NodeB
Soft Handover Flow
Core Network
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
69/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 69
Merged in RNC
Node B
RNC
AirBridge
AirBridge
AirBridge
Soft Handover Flow
Core Network
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
70/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 70
Soft Handover Flow (SRNC-DRNC)
Merged in SRNC
Node B
AirBridge
AirBridge
AirBridge
Serving RNC
Drift RNC
Core Network
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
71/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 71
Soft Handover Flow (SRNC Relocation)
Node B
AirBridge
AirBridge
AirBridge
Serving RNC
RNC
Core Network
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
72/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 72
Before Handover After Handover
SRNC
NodeBNodeB
SRNC
NodeBNodeB
SRNC
NodeBNodeB
During Handover
Soft Handover FlowIntra-RNC
CNCN CN
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
73/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 73
Decision to setup
new RL
7. DCCH : Active Set Update Complete
6.DCCH: Active Set Update
UE Node B(new) SRNC
NBAP1. Radio Link Setup RequestNBAP
NBAP
2. Radio Link Setup ResponseNBAP
3 ALCAP Iub Data Transport Bearer Setup
Start RX description
DCH-FP4. Downlink SynchronisationDCH-FP
DCH-FP5.Uplink SynchronisationDCH-FP
Start RX description
RRC
RRC
RRC
RRC
Soft Handover FlowAdd Branch in RNC
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
74/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 75
Decision to delete
a RL
2. DCCH : Active Set Update Complete
1.DCCH: Active Set Update
UE Node B(old) SRNC
NBAP3. Radio Link Deletion RequestNBAP
NBAP4. Radio Link Deletion ResponseNBAP
RRC
RRC
RRC
RRC
Stop RX and Tx
5 ALCAP Iub Transport Bearer release
Soft Handover FlowDel Branch in RNC
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
75/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 76
Before Handover After Handover
Radio Link can not exist simultaneously
SRNC
NodeBNodeB
SRNC
NodeBNodeB
Hard Handover (Intra-RNC)
CNCN
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
76/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 77
UE Node B Source Node B Target SRNC
8. DCCH : Physical Channel Reconfiguration Complete
6.DCCH : Physical Channel Reconfiguration
1. Radio Link Setup Request
2. Radio Link Setup Response
9. Radio Link Deletion Request
10. Radio Link Deletion Response
3 ALCAP ub Data Transport Bearer Setup
7. Radio Link Failure IndicationRRCRRC
NBAPNBAP
NBAP
RRC
RRC
NBAP
NBAP
NBAP NBAP
Decide to
handover
Start Rx
Start Tx
DCH-FP4. Downlink SynchronisationDCH-FP
DCH-FP5.Uplink SynchronisationDCH-FP
NBAP
NBAP
NBAP
11. ALCAP Iub Data Transport Bearer Release
Hard Handover (Intra-RNC)
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
77/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 79
SRNC Relocation
SRNS
Core Network
Iu
DRNSIur
UE
RNS
Core Network
Iu
SRNS
UE
After SRNS RelocationBefore SRNS Relocation
Cells
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
78/83
I t S t H d Fl UMTS GSM
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
79/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 81
Inter-System Handover FlowUMTS->GSM
UE NodeB RNC 3G MSC 2G MSC BSS
Measurement Report(2D)
RL Recfg PrepRL Recfg Ready
Physical Channel Reconfiguration
RL Recfg Commit
Physical Channel Reconfiguration cmp
Measurement Control(InterRAT)
Measurement Report(GSM)
Relocation Required
Relocation Command
Prepare Handover
Handover Request
Handover Request ACK
Prepare Handover RSP
Handover From UTRAN CMD
Handover Complete
IU release command
IU release complete
RRC Con Release Req
RRC Con Release Cmp
RL Del Req
RL Del Rsp
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
80/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 82
Inter-System Handover Flow (GSM-UMTS)
UE NodeB RNC 3G MSC 2G MSC BSS
RL setup requeset
RL setup response
RL Restore Indicaton
Handover Complete
UTRAN Capacity Info
UE Capacity Info Enquiry
Relocation Requeset
Prepare Handover
Handover Request
Handover Command
Send end signal
requeset
Inter System to UTRAN Ho cmd (Handover to UTRAN Command)
Clear command
Clear complete
UTRAN Capacity Info Confirm
UE Capacity Info Confirm
Relocation Requeset
ACKPrepare Handover RSP
Relocation Complete
Send end signal
responseUE Capacity Info
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
81/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 83
Forward Handover
Forward Handover is sponsored by UE, including cell update and
URA update. URA update is only used to make the URA re-selection
for the UE which is in URA_PCH state, and check the RRCconnection.
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
82/83
HUAWEI TECHNOLOGIES CO., LTD. All rights reserved Page 84
This chapter mainly explains the
basic signaling flow in UTRAN. Thisis very helpful for the CN signaling
flow.
Summary
-
5/22/2018 03- OWA210001 WCDMA UTRAN Interface and Signaling Procedure
83/83
www.huawei.com
Thank You