OEA000200 LTE Protocols and Procedures ISSUE 1.01
-
Upload
engluisteleco -
Category
Documents
-
view
224 -
download
0
Transcript of OEA000200 LTE Protocols and Procedures ISSUE 1.01
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
1/279
www.huawei.com
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
LTE Protocols andProcedures
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
2/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page2
Contents
1. EPS Architecture
2. EPS Protocols
3. LTE/SAE Quality of Service
4. Radio Resource Control
5. Packet Data Convergence Protocol
6. Radio Link Control and Medium Access Control
7. X2/S1 Interface and Protocols
8. Mobility in LTE
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
3/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page3
Contents
1. EPS Architecture
2. EPS Protocols
3. LTE/SAE Quality of Service
4. Radio Resource Control
5. Packet Data Convergence Protocol
6. Radio Link Control and Medium Access Control
7. X2/S1 Interface and Protocols
8. Mobility in LTE
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
4/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page4
Contents
1. EPS Architecture
1.1 EPS Network Elements
1.2 EPS Interfaces
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
5/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page5
Contents
1. EPS Architecture
1.1 EPS Network Elements
1.2 EPS Interfaces
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
6/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
E-UTRAN Architecture
Page6
UE eNB
E-UTRAN
eNB
EPC
S-GW
MME
PDN-GW
IMS
HSS Video ASCSCF
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
7/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
UE
EPS Mobility & EPS
Session Management
IP Adaptation
FunctionRadio Resource
Control
Plane
User
Plane
User Equipment
Page7
EPS Mobility Management
Registration
Tracking Area Update
Handover
EPS Session M anagementBearer Activation
Bearer Modification
Bearer Deactivation
Radio Resource
RRC, PDCP, RLC, MAC &
PHY Layer Protocols
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
8/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
UE Categories
Page8
UE Category MaximumDownlinkData Rate
Number ofDownlinkData Streams
MaximumUplink DataRate
Support forUplink64QAM
1 10.3Mbit/s 1 5.2Mbit/s No
2 51.0Mbit/s 2 25.5Mbit/s No
3 102.0Mbit/s 2 51.0Mbit/s No
4 150.8Mbit/s 2 51.0Mbit/s No
5 302.8Mbit/s 4 75.4Mbit/s Yes
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
9/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
UE Identities
IMSI (International Mobile Subscriber Identity)
IMEI (International Mobile Equipment Identity)
GUTI (Globally Unique Temporary Identity)
S-TMSI (Serving - Temporary Mobile Subscriber Identity)
IP Address - This may either be an IPv4 or IPv6 address
Page9
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
10/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Evolved Node B
Page10
Packet
Classification
and QoS Policy
Enforecment
Radio Resource
Management
Routing
DataCompression
Data Protection
eNB
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
11/279
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
12/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Femto Cells
In order to improve network coverage and capacity, the
3GPP have developed a new type of base station to operate
within the home or small business environment. Termed the
HeNB (Home Evolved Node B). In additional identities which have been introduced by the
3GPP for femto cell operation. These are:
CSG (Closed Subscriber Group) Identity.
HeNB.
Page12
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
13/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Mobility Management Entity
Page13
Authentication
NAS Signaling
and Security
S-GW and
PDN-GW
Selection
Tracking Area List
Management and
Paging
Inter MME
Mobility
MME
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
14/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Serving - Gateway
Page14
GTP/PMIP
SupportMobility Anchor
Downlink
Packet
Buffering
Packet Routing
and Forwarding
Lawful
Interception
S-GW
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
15/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Packet Data Network - Gateway
Page15
Packet Filtering
LawfulInterception
IP Address
Allocation
Transport
Level Packet
Marking
Accounting
PDN-GW
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
16/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page16
Contents
1. EPS Architecture
1.1 EPS Network Elements
1.2 EPS Interfaces
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
17/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
E-UTRAN Interfaces
Page17
E-UTRAN
X2
Uu
eNB
eNB
EPC
S-GW
MME
S1-MME
S1-MMES1-U
S1-U
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
18/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
EPC Architecture and Interfaces
Page18
EPC
S1-MME
S1-U
S11
S5/S8
S-GW
SGi
PDN-GW
MMEMME
S10
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
19/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Additional Network Elements and
Interfaces
Page19
EPC
S11
S5/S8
S10
MME
MME
SGSN
RNC
PCRF
HSS
EIR
S6a
S101
S2a
Gx
ePDG
S2bS103
S12
S4
S3
S13
CDMA
2000
CDMA
2000
Trusted
Non 3GPP
IP Access
Untrusted
Non 3GPP
IP Access
PDN-GW
Wn
S-GW
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
20/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page20
Questions
Which Release 8 UE category supports MIMO 4x4?
a. 1.
b. 2.
c. 3
d. 4
e. 5
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
21/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page21
Questions
True / False. An LTE system does not use the IMSI.
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
22/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page22
Questions
Which node terminates the UEs NAS signaling?
a. eNB.
b. MME.
c. S-GW
d. PDN-GW.
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
23/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page23
Questions
True / False. The S-GW uses DHCP to allocate the UE IP
address.
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
24/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page24
Questions
Which interface connects the eNB to the MME?
a. X2.
b. S1-MME.
c. S1-U
d. S5.
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
25/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page25
Questions
Which interface connects an eNB logically to another eNB?
a. X2.
b. S1-MME.
c. S1-U
d. S5.
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
26/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page26
Contents
1. EPS Architecture
2. EPS Protocols
3. LTE/SAE Quality of Service
4. Radio Resource Control
5. Packet Data Convergence Protocol
6. Radio Link Control and Medium Access Control
7. X2/S1 Interface and Protocols
8. Mobility in LTE
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
27/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page27
Contents
2. EPS Protocols
2.1 EPS Signaling
2.2 EPS Protocols
2.3 E-UTRAN Channel Mapping
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
28/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page28
Contents
2. EPS Protocols
2.1 EPS Signaling
2.2 EPS Protocols
2.3 E-UTRAN Channel Mapping
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
29/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page29
LTE Control Plane
UE
E-UTRAN EPC
S-GW
MME
PDN-GWeNB
Non Access
Stratum
Signaling
Access
Stratum
Signaling
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
30/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page30
LTE User Plane
UE
E-UTRAN EPC
S-GW
MME
PDN-GWeNB
Non Access
Stratum IP
Datagrams
Access
Stratum
Transport
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
31/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page31
Contents
2. EPS Protocols
2.1 EPS Signaling
2.2 EPS Protocols
2.3 E-UTRAN Channel Mapping
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
32/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page32
Uu Interface Protocols
RLC
MAC
PHY
PDCP
RRC
Control Plane eNBUE
Uu
EMM and ESM Non Access Stratum
Access Stratum
RLC
MAC
PHY
PDCP
IP
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
33/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page33
NAS EMM and ESM ProceduresEMM Procedures ESM Procedures
Attach Default EPS Bearer Context Activation
Detach Dedicated EPS Bearer Context Activation
Tracking Area Update EPS Bearer Context Modification
Service Request EPS Bearer Context Deactivation
Extended Service Request UE Requested PDN Connectivity
GUTI Reallocation UE Requested PDN Disconnect
Authentication UE Requested Bearer Resource Allocation
Identification UE Requested Bearer Resource Modification
Security Mode Control ESM Information Request
EMM Status ESM Status
EMM Information
NAS Transport
Paging
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
34/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
eNB
RLC
MAC
PHY
PDCP
RRC
NAS Signaling
System Information
PLMN and Cell SelectionAdmission Control
Security Management
Cell Reselection
Measurement Reports
Handovers and Mobility
NAS TransportRadio Resource Management
Page34
Radio Resource Control
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
35/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
eNB
RLC
MAC
PHY
PDCP
RRC
NAS Signaling
Control Plane
Encryption
Integrity Checking
User PlaneIP Header Compression
Encryption
Sequencing and Duplicate Detection
Page35
Packet Data Convergence Protocol
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
36/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page36
Radio Link Control
eNB
RLC
MAC
PHY
PDCP
RRC
NAS Signaling
TM (Transparent Mode)
UM (Unacknowledged Mode)
AM (Acknowledged Mode)Segmentation and Re-assembly
Concatenation
Error Correction
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
37/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page37
Medium Access Control
eNB
RLC
MAC
PHY
PDCP
RRC
NAS Signaling
Channel Mapping and MultiplexingError Correction - HARQ
QoS Based Scheduling
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
38/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page38
Physical Layer
eNB
RLC
MAC
PHY
PDCP
RRC
NAS Signaling
Error Detection
FEC Encoding/Decoding
Rate Matching
Mapping of Physical Channels
Power WeightingModulation and Demodulation
Frequency and Time Synchronization
Radio Measurements
MIMO Processing
Transmit Diversity
Beamforming
RF Processing
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
39/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page39
Physical Layer
eNB
RLC
MAC
PHY
PDCP
RRC
NAS Signaling
Error Detection
FEC Encoding/Decoding
Rate Matching
Mapping of Physical Channels
Power WeightingModulation and Demodulation
Frequency and Time Synchronization
Radio Measurements
MIMO Processing
Transmit Diversity
Beamforming
RF Processing
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
40/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
X2 Interface
Page40
eNB eNB
X2
IP
Layer 2
Layer 1
SCTP
X2AP
Control Plane
IP
Layer 2
Layer 1
UDP
GTP-U
User Plane
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
41/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
S1 Interface
Page41
eNB
IP
Layer 2
Layer 1
SCTP
S1APControl Plane
S1-MME
MME
IP
Layer 2
Layer 1
UDP
GTP-UUser Plane
eNB
S1-U
S-GW
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
42/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
S11 Interface
Page42
IP
Layer 2
Layer 1
UDP
GTPv2-C
Control Plane
S11
MME S-GW
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
43/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
IP
Layer 2
Layer 1
UDP
GTPv2-C
IP
Layer 2
Layer 1
UDP
GTP-U / PMIP
Control Plane User Plane
S5/S8
S-GW PDN-GW
S5/S8 Interface
Page43
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
44/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
IP
Layer 2
Layer 1
UDP
GTPv2-C
Control Plane
S10
MME MME
S10 Interface
Page44
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
45/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
IP
Layer 2
Layer 1
TCP / UDP
Applications
SGi
PDN-GW
SGi Interface
Page45
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
46/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page46
Contents
2. EPS Protocols
2.1 EPS Signaling
2.2 EPS Protocols
2.3 E-UTRAN Channel Mapping
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
47/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page47
LTE Channels
LogicalChannels
TransportChannels
PhysicalChannels
RadioChannels
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
48/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page48
Logical Channels
RLC
MAC
PHY
Logical
ChannelsTransport
Channels
Physical
Channels Radio
Channel
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
49/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page49
Control Logical Channels
BCCH
eNBUE
PCH
System Information
Messages
Paging
Devices
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
50/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
CCCH
eNBUE
CCCH
DCCH
DCCH
SRB 0
SRB 0
SRB 1
SRB 2
Low PriorityNAS Signaling
Page50
CCCH and DCCH Signaling
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
51/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page51
Traffic Logical Channels
eNBUE
DTCHDRB
Carries AM or UM
RLC Traffic
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
52/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page52
LTE Release 8 Transport Channels
BCH
eNBUE
PCH
DL-SCH
RACH
UL-SCH
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
53/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page53
Downlink Physical Channels
PBCH (Physical Broadcast Channel)
PCFICH (Physical Control Format Indicator Channel)
PDCCH (Physical Downlink Control Channel)
PHICH (Physical Hybrid ARQ Indicator Channel)
PDSCH (Physical Downlink Shared Channel)
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
54/279
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
55/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page55
Radio Channels
eNB
UE
Radio
Channel
FDDRadio
Channel
UE
TDD
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
56/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page56
Downlink Channel Mapping
DL-SCH
Physical Layer
MAC Layer
RLC Layer
PDCP Layer
RRC Layer
Physical
Channels
Transport
Channels
Logical
Channels
PDSCHPDCCHPHICHPCFICHPBCH
BCH PCH
BCCH PCCH CCCH DCCH DTCH
TM TM TM UM/AM UM/AM
Ciphering
Integrity
Ciphering
ROHC
RRC
ESM EMM IPNAS Layer
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
57/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page57
Uplink Channel Mapping
Physical Layer
MAC Layer
RLC Layer
PDCP Layer
RRC Layer
Physical
Channels
Transport
Channels
Logical
Channels
PUSCHPUCCHPRACH
RACH
CCCH
TM UM/AM UM/AM
Ciphering
Integrity
Ciphering
ROHC
RRC
ESM EMM IPNAS Layer
UL-SCH
DCCH DTCH
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
58/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page58
Questions
What is the main control signaling protocol between the UE
and the MME?
a. RRC.
b. RLC.
c. S1AP
d. NAS.
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
59/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page59
Questions
True / False. The eNB is able to decode the NAS messages.
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
60/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page60
Questions
Which protocol on the air interface is responsible for User
Plane ciphering/encryption?
a. RRC.
b. PDCP.
c. RLC.
d. MAC.
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
61/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page61
Questions
Which protocol is used to carry S1AP and X2AP signaling?
a. GTPv1-U.
b. PDCP.
c. GTPv2-C.
d. TCP.
e. SCTP.
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
62/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page62
Questions
What control protocol is used between the MME and the S-
GW?
a. GTPv1-U.
b. PDCP.
c. GTPv2-C.
d. TCP.
e. SCTP.
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
63/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page63
Contents
1. EPS Architecture
2. EPS Protocols
3. LTE/SAE Quality of Service
4. Radio Resource Control
5. Packet Data Convergence Protocol
6. Radio Link Control and Medium Access Control
7. X2/S1 Interface and Protocols
8. Mobility in LTE
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
64/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page64
Contents
3. LTE/SAE Quality of Service
3.1 EPS Bearer Services and E-UTRA Radio Bearers
3.2 E-UTRA Radio Bearers
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
65/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page65
Contents
3. LTE/SAE Quality of Service
3.1 EPS Bearer Services and E-UTRA Radio Bearers
3.2 E-UTRA Radio Bearers
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
66/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page66
QoS in Packet Switched Networks
Data Voice x10
UE
E-UTRAN
EPC
S-GW
MME
PDN-GWeNB
UE
Packet
Classifier
Packet
Scheduler
Voice
Data x2
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
67/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page67
LTE Bearers
End to End Service
Uu S1-U S5/S8 SGi
UEeNB S-GW PDN-GW
EPS Bearer Service
GTP Based Transport
(PMIP is different)
EPS Radio Bearer EPS Access Bearer
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
68/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page68
Service Data Flows
Uu S1-U S5/S8 SGi
UEeNB S-GW PDN-GW
EPS Bearer Service
SDF (Service
Data Flow)
Default and Dedicated EPS
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
69/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page69
Default and Dedicated EPS
Bearers
UE PDN-GWDefault EPS Bearer
Dedicated EPS Bearer (Maximum of 7) TFTTFT
Each Dedicated EPS Bearers has an
associated TFT (Traffic Flow Template)
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
70/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
EPS QoS Parameters
GBR QoS Information
AMBR (Aggregate Maximum Bit Rate)
QoS Class Indicator
ARP (Allocation and Retention Priority)
Page70
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
71/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
GBR QoS Information
E-RAB Maximum Downlink Bit Rate.
E-RAB Maximum Uplink Bit Rate.
E-RAB Guaranteed Downlink Bit Rate.
E-RAB Guaranteed Uplink Bit Rate.
Page71
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
72/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Aggregate Maximum Bit Rate
UE AMBR (User Equipment Aggregate Maximum Bit Rate)
APN AMBR (Access Point Name Aggregate Maximum Bit
Rate)
Page72
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
73/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page73
QoS Class Indicator
QCI Type Priority Packet
DelayBudget (ms)
Packet
Error Rate
Example Service
1 GBR 2 100 10-2
Conversational Voice
2 GBR 4 150 10-3
Conversational Video
3 GBR 3 50 10-3
Real Time Gaming
4 GBR 5 300 10-6
Non-Conversational Voice
5 Non-GBR 1 100 10-6
IMS Signaling
6 Non-GBR 6 300 10-6
Video, TCP Based
7 Non-GBR 7 100 10-3
Voice, Video, InteractiveGaming
8 Non-GBR 8 300 10-6
Video, TCP Based
9 Non-GBR 9 300 10-6
Video, TCP Based
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
74/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Allocation and Retention Priority
Priority Level (0 to 15)
Pre-emption Capability
Pre-emption Vulnerability
Page74
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
75/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page75
Contents
3. LTE/SAE Quality of Service
3.1 EPS Bearer Services and E-UTRA Radio Bearers
3.2 E-UTRA Radio Bearers
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
76/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page76
Signaling Radio Bearers
SRB0
SRB1
SRB2
Uu S1-U S5/S8 SGi
UEeNB S-GW PDN-GW
SRB 2
SRB 1
RRC (High Priority)
NAS (Lower Priority)
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
77/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page77
Data Radio Bearers
Uu S1-U S5/S8 SGi
UEeNB S-GW PDN-GW
SRB 2
SRB 1
Default EPS Bearer (EPS Bearer Identity = 5)DRB 1
EPS Bearer
Identity 0 to 15
DRB Identity
1 to 32
Logical
Channel
Identity
1
2
3
Logical Channel
Identity 1 to 10
for Radio Bearers
Q S
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
78/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page78
Radio Bearer QoS
Uu S1-U S5/S8 SGi
UEeNB S-GW PDN-GW
SRB 2
SRB 1
Default EPS Bearer (EPS Bearer Identity = 5)
Logical
Channel
Identity
DRB 1
1
2
3
MME
E-RAB ID
E-RAB Level QoS Parameters
Transport Layer Address
GTP-TEID
NAS-PDU
E UTRA C fi i
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
79/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page79
E-UTRA Configuration
UE
eNB
E-RAB ID
DRB ID
PDCP, RLC, MAC and PHY Configuration
E UTRA C fi ti C t
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
80/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
E-UTRA Configuration Cont.
Various parameters can influence the performance, these include:
PDCP Compression.
RLC AM or UM.
RLC AM Polling Configuration.
Uplink MAC Priority. Uplink MAC Prioritized Bit Rate.
Uplink MAC Bucket Size Duration.
HARQ Configuration and re-transmissions.
BSR (Buffer Status Report) Configuration.
SPS (Semi Persistent Scheduling) Configuration.
Physical Channel and Power Configuration.
Page80
Q ti
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
81/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page81
Questions
The EPS Bearer typically is identified between the UE and
which other entity?
a. eNB.
b. MME.
c. S-GW.
d. PDN-GW.
Q ti
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
82/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page82
Questions
What is used in the PDN-GW and the UE to map IP
datagrams to the correct EPS bearer?
Q ti
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
83/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page83
Questions
How many EPS bearers can a UE have?
a. 5.
b. 6.
c. 7.
d. 8.
e. 9.
Q ti
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
84/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page84
Questions
Which QCI value is linked to IMS signaling?
C t t
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
85/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page85
Contents
1. EPS Architecture
2. EPS Protocols
3. LTE/SAE Quality of Service
4. Radio Resource Control
5. Packet Data Convergence Protocol
6. Radio Link Control and Medium Access Control
7. X2/S1 Interface and Protocols
8. Mobility in LTE
C t t
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
86/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page86
Contents
4. Radio Resource Control4.1 The RRC Layer
4.2 RRC Structure
4.3 RRC States4.4 RRC Services
C t t
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
87/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page87
Contents
4. Radio Resource Control4.1 The RRC Layer
4.2 RRC Structure
4.3 RRC States4.4 RRC Services
RRC I t ti ith L L
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
88/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page88
RRC Interaction with Lower Layers
RLC
MAC
Physical
PDCP
RRC
NAS
IPRRC
Control
Services Provided To Upper
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
89/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
pp
Layers
The RRC protocol offers the following services to upper layers:
Broadcast of common control information.
Notification of UEs in RRC Idle mode.
Transfer of dedicated control information.
Page89
Services Expected From Lower
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
90/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
p
Layers
The main services that RRC expects from lower layersinclude:
PDCP - integrity protection and ciphering.
RLC - a reliable and in-sequence transfer of information,without introducing duplicates and with support for
segmentation and concatenation.
Page90
Contents
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
91/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page91
Contents
4. Radio Resource Control4.1 The RRC Layer
4.2 RRC Structure
4.3 RRC States
4.4 RRC Services
eNB Structure
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
92/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page92
eNB Structure
RLC
MAC
Physical
PDCP
RRC
Non Access Stratum
Access Stratum
Control Plane
RRM
Relay EMM and
ESM Signaling Relay IP Datagrams
PDCP
RLC
MAC
Physical
User Plane
EPS
Bearers
Contents
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
93/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page93
Contents
4. Radio Resource Control4.1 The RRC Layer
4.2 RRC Structure
4.3 RRC States
4.4 RRC Services
RRC States
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
94/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page94
RRC States
LTE Detached
LTE Active
RRC Connected
LTE Idle
RRC Idle
PLMN Selection
Broadcast of System Information
Cell Selection
RRC Connection (SRB)
RRC Context in eNB
UE Known in a Cell
Send and/or Receive Data to/from UE
Network Controlled Mobility
Measurement Control
UE Monitors Scheduling Control ChannelUE Reports Channel Quality
UE can send Feedback Information
DRX can be Configured
DRX configured by NAS
Broadcast of System Information
PagingCell Reselection Mobility
GUTI Allocated
Located in Tracking Area(s)
No RRC Context Stored in the eNB
Functions
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
95/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Functions
Broadcast of SI (System Information):
Including NAS common information.
Information applicable for UEs in RRC Idle mode.
Including ETWS (Earthquake and Tsunami Warning System) notification.
Page95
Functions Cont
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
96/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Functions Cont.
RRC Connection control:
Paging.
Establishment/modification/release of RRC connection.
Initial security activation.
RRC connection mobility
Establishment/modification/release of RBs
Radio configuration control
QoS control Recovery from Radio Link failure.
Page96
Functions Cont
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
97/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Functions Cont.
Inter-RAT mobility including e.g. security activation, transfer of RRC
context information.
Measurement configuration and reporting:
Establishment/modification/release of measurements.
Setup and release of measurement gaps.
Measurement reporting.
Other functions including e.g. transfer of dedicated NAS information and
non-3GPP dedicated information, transfer of UE radio access capability
information, support for E-UTRAN sharing (multiple PLMN identities).
Generic protocol error handling.
Support of self-configuration and self-optimization.
Page97
E UTRA RRC State Interaction
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
98/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page98
E-UTRA RRC State Interaction
Connection
Establishment/Release
E-UTRARRC Connected
E-UTRARRC Idle
Handover
Reselection
Connection
Establishment/
Release
Reselection
Cell_DCH
Cell_FACH
Cell_PCH
URA_PCH
UTRA_Idle
Connection
Establishment/Release
Handover
CCO, Reselection
Reselection
CCO, Reselection
CCO with NACC
GSM Idle/GPRSPacket Idle
GPRS Packet
Transfer Mode
GSM Connected
Mobility Procedures between
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
99/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page99
E-UTRA and CDMA2000
Handover
Connection
Establishment/Release
1xRTT CS Act ive
1xRTT Dormant
E-UTRA
RRC Connected
E-UTRA
RRC Idle
HRPD ActiveHandover
HRPD IdleReselection Reselection
Contents
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
100/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page100
Contents
4. Radio Resource Control4.1 The RRC Layer
4.2 RRC Structure
4.3 RRC States
4.4 RRC Services
MIB and SIB1 Parameters
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
101/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page101
MIB and SIB1 Parameters
MIB
eNB
SIB1
MIB
Bandwidth
PHICH
SFN
SIB1
PLMN Identity List
Tracking Area Code
Cell Identity
Cell Barred Indication
Intra Frequency ReselectionCSG Indication and Identity
Cell Selection Information
P-Max
Frequency Band Indicator
Scheduling Information List
TDD Configuration
SIB Window LengthSystem Info Value Tag
LTE SIBsSIB2
Access Class Information
SIB5
Inter Frequency Carrier Freq List
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
102/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page102
LTE SIBs Radio Resource Configuration CommonUE-Timers And Constants
Uplink Frequency Information
MBSFN Configuration Information
Time Alignment Timer Common
SIB3
Cell Reselection Information
Q-Hyst
Speed State Reselection Parameters
Cell Reselection Serving Freq Info
S-Non-Intra Search Info
Threshold Serving Low Value
Cell Reselection Priority
Intra Freq Cell Reselection Infoq-RxLevMin
p-Max
s-IntraSearch
Allowed Measurement Bandwidth
Presence Antenna Port 1
Neighbor Cell Config
t-ReselectionEUTRA
t-ReselectionEUTRA-SF
SIB4
Intra Freq Neighbour Cell List
Physical Cell ID
q-OffsetCell
Intra Freq Black Cell List
CSG Physical Cell Id Range
Inter Frequency Carrier Freq Info
Inter Frequency Neighbour Cell List
Inter Frequency Neighbour Cell Info
Inter Frequency Black Cell List
SIB6Carrier Frequency List UTRA (FDD/TDD)
t-Reselection UTRA
SIB7
t-Reselection GERAN
Carrier Frequency Info List
SIB8
CDMA2000 Reselection Information
SIB9
Home eNB Name
SIB10
ETWS Primary Notification
SIB11
ETWS Secondary Notification
RRC Paging
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
103/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page103
RRC Paging
Paging
eNB
Paging
Paging Record List
- UE Identity (S-TMSI or IMSI)
- CN Domain
System Info Modification
ETWS Indication
RRC Connection
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
104/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page104
RRC Connection
RRC Connection RequesteNBUE
RRC Connection Setup
RRC Connection Setup Complete
RRC Connection Request
UE IdentityCause
RRC Connection Setup
Radio Resource Config Dedicated- srb-ToAddModList
- drb-ToAddModList
- drb-ToReleaseList
- MAC Main Config
- SPS Config
- Physical Config Dedicated
RRC Connection Setup Complete
Selected PLMN-Identity
Registered MME
Dedicated Info NAS
RRC Connection Reject
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
105/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page105
RRC Connection Reject
On reception of a RRC Connection Reject:
Stop timer T300 (Stops on reception of RRC Connection Setup or RRC
Connection Reject message).
Reset MAC and release the MAC configuration.
Start timer T302, with the timer value set to the Wait Time.
Inform upper layers about the failure to establish the RRC connection and that
access barring for mobile originating calls, mobile originating signalling and
mobile terminating access is applicable, upon which the procedure ends;UE
utilizes the T302 timer.
Initial Security Activation
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
106/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page106
Initial Security Activation
eNBUE
Security Mode Command
Security Mode Complete
Security Mode Failure
Security Mode Command
Ciphering Algorithm
Integrity Protection Algorithm
RRC Connection Reconfiguration
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
107/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page107
RRC Connection Reconfiguration
RRC Connection
Reconfiguration Request
Measurement Configuration
Mobility Control Information
Dedicated Info NAS
Radio Resource Config Dedicated- srb-ToAddModList
- drb-ToAddModList
- drb-ToReleaseList
- MAC Main Config
- SPS Config
- Physical Config Dedicated
Security Configuration HO
RRC Connection Reconfiguration
Request
eNBUE
RRC Connection Reconfiguration
Complete
RRC Connection Re-establishment
Counter Check
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
108/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page108
Counter Check
Counter Check
drb-CountMSB-InfoList
- DRB-CountMSB-Info-- drb-Identity
-- countMSB-Uplink
-- countMSB-Downlink
Counter CheckeNBUE
Counter Check Response
RRC Connection Re-establishment
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
109/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
RRC Connection Re establishment
The UE initiates the procedure when AS security has beenactivated and one of the following conditions is met:
Upon detecting RLF (Radio Link Failure).
Upon handover failure.Upon mobility from E-UTRA failure.
Upon integrity check failure indication from lower layers.
Upon an RRC Connection Reconfiguration failure.
Page109
RRC Connection Re-establishment
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
110/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
RRC Connection Re establishment
Page110
RRC Connection Reestablishment Request
eNBUE
RRC Connection Reestablishment
RRC Connection Reestablishment Complete
RRC Connection Re-establishment
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
111/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Cause Values
The RRC Connection Reestablishment Request messageincludes a cause value:
Reconfiguration Failure.
Handover Failure. Other Failure.
Page111
RRC Connetion Release
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
112/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page112
RRC Connetion Release
RRC Connection Release
Release Cause
Redirected Carrier Info
Idle Mode Mobility Control Info
RRC Connection Release
eNBUE
Information Transfer
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
113/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page113
Information Transfer
DL or UL Information Transfer
Dedicated Info NAS
Dedicated Info CDMA2000-1XRTT
Dedicated Info CDMA2000-HRPDDL Information TransfereNBUE
UL Information Transfer
Measurement Configuration
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
114/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Measurement Configuration
Intra-frequency measurements: measurements at the
downlink carrier frequency of the serving cell.
Inter-frequency measurements: measurements at
frequencies that differ from the downlink carrier frequency of
the serving cell.
Inter-RAT measurements of UTRA frequencies.
Inter-RAT measurements of GERAN frequencies.
Inter-RAT measurements of CDMA2000 HRPD or
CDMA2000 1xRTT frequencies.
Page114
Measurement Configuration
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
115/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Measurement Configuration
Page115
RRC Connection Reconfiguration
Request
Measurement Configuration
- measObjectToRemoveList
- measObjectToAddModList
- reportConfigToRemoveList- reportConfigToAddModList
- measIdToRemoveList
- measIdToAddModList
- quantityConfig
- measGapConfig
- s-Measure
RRC Connection Reconfiguration
Request
eNBUE
RRC Connection Reconfiguration
Complete
Measurement Objects
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
116/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Measurement Objects
Page116
RRC Connection ReconfigurationRequest
Measurement Configuration
- measObjectToAddModList
-- measObjectId
-- measObject measObjectEUTRA
--- carrierFreq
--- allowedMeasBandwidth
--- presenceAntennaPort1
--- neighCellConfig
--- offsetFreq
--- cellsToAddModList
---- cellIndex
---- physCellId---- cellIndividualOffset
RRC Connection Reconfiguration
Request
eNBUE
RRC Connection Reconfiguration
Complete
Report Configuration
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
117/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Report Configuration
Page117
RRC Connection ReconfigurationRequest
Measurement Configuration
- reportConfigToAddModList
-- reportConfigId
-- reportConfig reportConfigEUTRA
--- triggerType event
---- eventId e.g. eventA1----- a1-Threshold threshold-RSRP
---- hysteresis
---- timeToTrigger
--- triggerQuantity (RSRP)
--- reportQuantity
--- maxReportCells--- reportInterval
--- reportAmount
RRC Connection Reconfiguration
Request
eNBUE
RRC Connection Reconfiguration
Complete
Periodical Reporting
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
118/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Periodical Reporting
Page118
eNB
UE
eNB
Periodical
ReportingReport Interval (ms120, ms240, ms480, ms640,
ms1024, ms2048, ms5120, ms10240,min1, min6, min12, min30, min60)
Measurement Based Triggering
E t
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
119/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Events Event A1 - serving cell becomes better than the threshold.
Event A2 - serving cell becomes worse than the threshold.
Event A3 - neighbor cell becomes (including offset) better than the
serving cell.
Event A4 - neighbor cell becomes better than the threshold.
Event A5 - serving cell becomes worse than Thresh1 (Threshold1) and
the neighbor cell becomes better than Thresh2 (Threshold2).
Event B1 - Inter RAT neighbor cell becomes better than threshold.
Event B2 - serving cell becomes worse than threshold1 and inter RAT
neighbor cell becomes better than threshold2.
Page119
Event Based Trigger (Event A3)
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
120/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
gg ( )
Page120
eNB
UE
eNB
Event
Reporting
A3 Offset
(-30 to 30dB)
TTT (Time to
Trigger)
Report Interval and
Report Amount
Event A3 Example
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
121/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
p
Page121
UE
Event
Reporting
Serving
Cell
Serving Cell(Including
Offsets)
Neighboring Cell
(Including
Offsets)
Enter
Leave Enter
Hysteresis
TTT Measurement
Report
TTT Not
Met
Event A3 TTT Timer
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
122/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Entering condition:
Mn+ Ofn + Ocn Hys > Ms + Ofs + Ocs + Off
Leaving condition:
Mn+ Ofn + Ocn+ Hys < Ms + Ofs + Ocs + Off
Page122
Cell Selection
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
123/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page123
Qrxlevmeas
Qrxlevmeas
eNB
UE
eNB
eNB
Qrxlevmeas
Srxlev > 0
Srxlev = Qrxlevmeas - (Qrxlevmin + Qrxlevminoffset) - Pcompensation
Cell Reselection
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
124/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Intra-frequency Measurements
If Squal > Sintrasearch - the UE may choose not to perform
intra-frequency measurements.
If Squal
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
125/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
High and Medium Mobility State
Medium-mobility state criteria - this is met if the number of
cell reselections during time period TCRmax exceeds NCR_M
and does not exceed NCR_H.
High-mobility state criteria - this is met if the number of cell
reselections during time period TCRmax exceeds NCR_H.
Ranking of Cells
Page125
Rs = Qmeas,s + Qhyst
Rn = Qmeas,n - Qoffset
Questions
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
126/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.Page126
What are the two main RRC states?
Questions
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
127/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.Page127
True/False. LTE uses substates like Cell_PCH andCell_FACH?
Questions
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
128/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.Page128
Which message is used to trigger LTE intra systemhandovers?
a. System Information.
b. RRC Connection Setup.
c. RRC Connection Reconfiguration.
d. Measurement Control.
Questions
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
129/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page129
Which event indicates that a neighboring cell is better than aserving cell by an offset?
a. Event A1.
b. Event A2.
c. Event A3.
d. Event A4.
Questions
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
130/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page130
Which message is used to configure measurement reportingand criteria?
a. System Information.
b. RRC Connection Setup.
c. RRC Connection Reconfiguration.
d. Measurement Control.
Contents
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
131/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page131
1. EPS Architecture
2. EPS Protocols
3. LTE/SAE Quality of Service
4. Radio Resource Control
5. Packet Data Convergence Protocol
6. Radio Link Control and Medium Access Control
7. X2/S1 Interface and Protocols
8. Mobility in LTE
Contents
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
132/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page132
5. Packet Data Convergence Protocol
5.1 PDCP Operation
PDCP Functions
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
133/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page133
Add PDCP Header
Ciphering
Integrity Protection
(Control Plane)
Header Compression (User Plane)
Sequence Numbering
Packet associated
to a PDCP SDU
Packet notassociated
to a PDCP
SDU
Remove PDCP Header
Deciphering
Integrity Verification
(Control Plane)
Header Decompression (User Plane)
Re-ordering (User Plane)
Packet associated
to a PDCP SDU Packet notassociated
to a PDCP
SDU
UE/eNB Transmitting PDCP Entity UE/eNB Receiving PDCP Entity
Radio Interface
PDCP Header Compression
Profiles
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
134/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Profiles
Page134
Profile Identifier Usage: Reference
0x0000 No compression RFC 4995
0x0001 RTP/UDP/IP RFC 4815
0x0002 UDP/IP RFC RFC 3095, RFC 4815
0x0003 ESP/IP RFC RFC 3095, RFC 4815
0x0004 IP RFC 3843, RFC 4815
0x0006 TCP/IP RFC 4996
0x0101 RTP/UDP/IP RFC 5225
0x0102 UDP/IP RFC 5225
0x0103 ESP/IP RFC 5225
0x0104 IP RFC 5225
Control Plane PDCP Data PDU for
SRB
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
135/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
SRB
Page135
R
Data
MAC-I (cont.)
Oct 1
Oct N
R R PDCP SN
MAC-I
MAC-I (cont.)
MAC-I (cont.)
Oct N-1
Oct N-2
Oct N-3
Oct 2...Message
Authentication
Code
Reserved
Bits
Sequence Number for
SRB
Data Plane PDCP Data PDU for
DRB (Long PDCP SN)
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
136/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
D/C Oct 1R R PDCP SN
Oct 2
R
Data
PDCP SN (Continued)
Oct 3
...
DRB (Long PDCP SN)
Page136
1=Data
PDU
12 bit Sequence Number
UM and AM Data
Data Plane PDCP Data PDU for
DRB (Short PDCP SN)
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
137/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
D/C Oct 1PDCP SN Oct 2Data
...
DRB (Short PDCP SN)
Page137
1=Data
PDU
7 bit Sequence
Number UM Data
PDCP Control PDU - Status Report
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
138/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
D/C Oct 1PDU Type
Bitmap (optional)
...
FMS
FMS (cont.)
Bitmap (optional)
Oct 2
Oct 3
Oct 2+N
Page138
0=Control
PDU
First Missing PDCP
Sequence Number000
PDCP Control PDU - Feedback
Report
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
139/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
D/C Oct 1PDU TypeInterspersed ROHC Feedback Packet
...
R R R R
Report
Page139
0=Control
PDU
001
PDCP ROHC
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
140/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Initialization and Refresh
First - Order
Second - Order
Page140
PDCP ROHC
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
141/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page141
VoIP IPv4UDPRTP
VoIP
UEeNB
PDCP
HeaderPDCP
Header
Compressed
First Order
ROHC
Feedback
PDCP Integrity
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
142/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page142
EIAKey
Count
Message
Direction
Bearer
EIAKey
Count
Message
Direction
Bearer
MAC-I XMAC-I
Count Value
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
143/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page143
HFN PDCP SN
HFN part is equal to 32
minus length of PDCP SN
PDCP Ciphering
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
144/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page144
EEAKey
Count
Bearer
Direction
Length
EEAKey
Count
Bearer
Direction
Length
Keystream
Block
Keystream
Block
Plaintext
Block
Plaintext
Block
Ciphertext
Block
Questions
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
145/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page145
True / False. PDCP is involved in NAS Ciphering.
Questions
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
146/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page146
What size PDCP Sequence Number supports UM and AM
RLC Modes?
a. 5bits.
b. 7bits.
c. 12bits.
d. 14bits.
Questions
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
147/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page147
True / False. EEA0, EEA1 and EEA2 encrypt information in
the air interface?
Questions
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
148/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page148
What term is used to identify IP header compression in LTE?
Contents
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
149/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page149
1. EPS Architecture
2. EPS Protocols
3. LTE/SAE Quality of Service
4. Radio Resource Control
5. Packet Data Convergence Protocol
6. Radio Link Control and Medium Access Control
7. X2/S1 Interface and Protocols
8. Mobility in LTE
Contents
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
150/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page150
6. Radio Link Control and Medium Access Control
6.1 RLC Functions
6.2 RLC Modes and Formatting
6.3 MAC Functions
6.4 MAC Architecture
6.5 MAC Formatting
Contents
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
151/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page151
6. Radio Link Control and Medium Access Control
6.1 RLC Functions
6.2 RLC Modes and Formatting
6.3 MAC Functions
6.4 MAC Architecture
6.5 MAC Formatting
Services Provided to Upper Layers
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
152/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page152
RLC
Upper Layers
TM-
Entity
UM-
Entity
UM-
Entity
TM-
EntityAM-Entity
Services Expected from Lower
Layers
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
153/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
y Data transfer.
Notification of a transmission opportunity, together with the
total size of the RLC PDU (Protocol Data Units) to be
transmitted in the transmission opportunity.
Page153
Functions of the RLC Sublayer
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
154/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Transfer of upper layer PDUs.
Error correction through ARQ.
Concatenation, segmentation and reassembly of RLC SDU (Service Data
Units).
Re-segmentation of RLC data PDUs. Reordering of RLC data PDUs.
Duplicate detection.
RLC SDU discard.
RLC re-establishment.
Protocol error detection.
Page154
Contents
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
155/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page155
6. Radio Link Control and Medium Access Control
6.1 RLC Functions
6.2 RLC Modes and Formatting
6.3 MAC Functions
6.4 MAC Architecture
6.5 MAC Formatting
Transparent Mode RLC
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
156/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page156
Transmission Buffer
Uu
Transmitting
TM-RLC Entity
Receiving
TM-RLC Entity
BCCH/PCCH/CCCH
Unacknowledged Mode RLC
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
157/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page157
Transmission Buffer
Uu
Transmitting
UM-RLC Entity
Receiving
UM-RLC Entity
Segmentation and
Concatenation
Add RLC Header
SDU Reassembly
Remove RLC Header
Reception Buffer and
HARQ Reordering
DTCH
Acknowledged Mode Functions
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
158/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Segmentation and reassembly.
Concatenation.
Error correction.
In-sequence delivery of higher layer data. Duplicate detection.
Page158
Acknowledged Mode RLC
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
159/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page159
Transmission BufferAM-RLC Entity
Retransmission
Buffer
Add RLC Header
SDU Reassembly
Remove RLC
Header
Reception Buffer &
HARQ Reordering
Routing
RLC
Control
Segmentation and
Concatenation
DCCH/DTCH DCCH/DTCH
RLC PDU Formats
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
160/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page160
Data Transfer Mode PDU Name
Transparent TMD
Unacknowledged UMD
Acknowledged AMD
AMD Segment
Status
RLC UMD 5bit SN
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
161/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
FI
Data
Oct 1
Oct N
E SN
Oct 2
Data
...
Page161
Frame
Information
Extension Bit 5bit SN
RLC UMD 10bit SN
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
162/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
R1
Data
Oct 1
Oct N
R1 R1 SN
Oct 2
Data
...
SN
EFI
Oct 3
Page162
10bit SN
Frame
Information Extension Bit
FI Field Interpretation
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
163/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page163
Value Description
00 First byte of the Data field corresponds to the first byte of a RLC SDU.
Last byte of the Data field corresponds to the last byte of a RLC SDU.
01 First byte of the Data field corresponds to the first byte of a RLC SDU.
Last byte of the Data field does not correspond to the last byte of a RLC SDU.
10 First byte of the Data field does not correspond to the first byte of a RLC SDU.
Last byte of the Data field corresponds to the last byte of a RLC SDU.
11 First byte of the Data field does not correspond to the first byte of a RLC SDU.
Last byte of the Data field does not correspond to the last byte of a RLC SDU.
RLC UMD with 2 Length Indicators
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
164/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
FI
Data
Oct 1E = 1 SN
Oct 2
Data
...
E = 1 LI1LI1 E = 0 LI2
LI2
Oct N
Page164
Padding is required
for odd number of
extensions
AMD PDU
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
165/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
D/C
Data
Oct 1
Oct N
RF=0 P SN
Oct 2
Data
...
SN
EFI
Page165
10bit SN
D/C=1
(Data PDU)
Re-segmentation Flag
(AMD PDU) Poll Bit Extension Bit
RLC AMD with Odd Number of
Length Indicators
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
166/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page166
D/C
Data
Oct 1
Oct N
RF=0 P SN
Oct 2
Data
...
SN
E = 1FI
E = 0 LI
LI LI Padding for odd
number of LIs
RLC AMD PDU Segment
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
167/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
D/C
Data
Oct 1
Oct N
RF=1 P SN
Oct 2
Data
...
SN
E = 0FI
SO
SO
LSF Oct 3
Oct 4
Oct 5
Page167
Segment
Offset
Last Segment
Flag
Re-segmentation Flag(AMD PDU Segment)
AMD Segmentation
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
168/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Data AMD
AMD
SegmentDataData
AMD
Segment
Segment
Offset x
Page168
Segment Offset x
LSF=1Segment Offset 0
LSF=0
RLC Status PDU
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
169/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
D/C Oct 1CPT ACK_SN
Oct 2
...
ACK_SN
NACK_SN Oct 3
Oct 4Oct 5
E1
E1 E2 NACK_SNNACK_SN E1 E2
SOstart
SOstart
SOend
SOend
SOend Padding
Oct 6
Oct 7
Oct 8
Oct 9
Page169
D/C=0
(Control PDU)
Control PDU Type1 = Status PDU
Set of NACK_SN,E1 and E2
Set of SOstart
and SOend
follows
RLC Timers
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
170/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
t-PollRetransmit
t-Reordering
t-StatusProhibit
Page170
Configurable Parameters
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
171/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
maxRetxThreshold
pollPDU
pollByte
sn-FieldLength
Page171
Contents
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
172/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page172
6. Radio Link Control and Medium Access Control
6.1 RLC Functions
6.2 RLC Modes and Formatting
6.3 MAC Functions
6.4 MAC Architecture
6.5 MAC Formatting
MAC Services
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
173/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Mapping
Multiplexing
HARQ (Hybrid Automatic Repeat Request)
Radio Resource Allocation
Formatting
Page173
Services Expected from the
Physical Layer
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
174/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Data transfer services.
Signaling of HARQ feedback.
Signaling of Scheduling Request.
Measurements, e.g. CQI (Channel Quality Indication).
Page174
Contents
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
175/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page175
6. Radio Link Control and Medium Access Control
6.1 RLC Functions
6.2 RLC Modes and Formatting
6.3 MAC Functions
6.4 MAC Architecture
6.5 MAC Formatting
MAC Architecture
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
176/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page176
Random
Access
Control
(De-) Multiplexing
Logical Channel Prioritization (UL
Only)
Control
HARQ
PCCH BCCH CCCH DCCH DTCH MAC Control
PCH BCH DL-SCH RACHUL-SCH Lower Layers
MAC
Contents
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
177/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page177
6. Radio Link Control and Medium Access Control
6.1 RLC Functions
6.2 RLC Modes and Formatting
6.3 MAC Functions
6.4 MAC Architecture
6.5 MAC Formatting
MAC PDU for DL-SCH and UL-
SCH
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
178/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page178
R
Data
Oct 1
Oct N
R E
Oct 2L
LCID
F
Oct 3
Oct 4
"1" to indicate another
set of R/R/E/LCID
Format Bit
0=7bits
R
Data
Oct 1
Oct N
R E
Oct 2L
LCID
F
Oct 3
Oct 4
LFormat Bit
1=15bits
Logical Channel
Identity
LCID Coding for DL-SCH
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
179/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page179
LCID Index Description
00000 CCCH
00001-01010 Identity of the logical channel
01011-11011 Reserved
11100 UE Contention Resolution Identity
11101 Timing Advance Command
11110 DRX Command
11111 Padding
LCID Coding for UL-SCH
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
180/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page180
LCID Index Description
00000 CCCH
00001-01010 Identity of the logical channel
01011-11001 Reserved
11010 Power Headroom Report
11011 C-RNTI
11100 Truncated BSR
11101 Short BSR
11110 Long BSR
11111 Padding
MAC Subheaders
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
181/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
ASub
Header A
Sub
Header B
Sub
Header CBC
Page181
MAC is able to multiplex Logical
Channels into single transmission
LCID indicates
content
Timing Advance Parameter
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
182/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page182
Timing Advance Command Oct 1R R
Buffer Status Report
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
183/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Short BSR and Truncated BSR format
Long BSR format
Page183
Buffer Size Oct 1LCG ID
Buffer #0 Oct 1
Buffer #1
Buffer #1
Buffer #2Buffer #2 Buffer #3
Power Control Headroom
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
184/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page184
eNBUE
Power
PMaximum UE
Output Power
PHR
Power Headroom Oct 1R R
Power Headroom Report Mapping
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
185/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page185
PH Reported value Measured Quantity Value (dB)
0 POWER_HEADROOM_0 -23 PH < -22
1 POWER_HEADROOM_1 -22 PH < -21
2 POWER_HEADROOM_2 -21 PH < -20
3 POWER_HEADROOM_3 -20 PH < -19
. . .
62 POWER_HEADROOM_62 39 PH < 40
63 POWER_HEADROOM_63 PH 40
Random Access Process
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
186/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
PRACH Preamble Sequence
MAC Scheduling Grant
RACH
RRC Connection RequestUL-SCH
RRC Connection Setup
RRC Connection Setup CompleteUL-SCH
DL-SCH
UE eNB
Signalling Radio Bearer
(RRC Connected)
Page186
MAC RAR
MAC
Contention
Resolution
Random Access Response
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
187/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page187
MAC RAR A
Sub Header A
MAC RAR B
MAC RAR n
RAPID Oct 1E T
Sub Header B
Sub Header n
TAR
UL GrantTA
UL Grant
UL Grant
Temporary C-RNTI
Temporary C-RNTI
MAC RAR
RAPID or BI
Uplink Grant
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
188/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page188
Parameter Size(bits)
Description
Hopping Flag 1 Indicates whether the allocation should be using uplink hopping.
Fixed Size Resource Block Assignment 10 The assigned uplink resources.
Truncated Modulation and Coding Scheme 4 Indication of modulation and coding scheme to use.
TPC Command for Scheduled PUSCH 3 Initial power control feedback, e.g. -4dB.
UL Delay 1 Indicates whether uplink assignment is delayed until the next
subframe, e.g. K+4+1.
CQI Request 1 Indicates whether the UE has been requested to multiplex the
CQI (Channel Quality Indicator) into the scheduled PUSCH
transmission.
Backoff Indicator
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
189/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page189
MAC RAR B
Sub Header A
MAC RAR n
BI Oct 1E T
Sub Header B
Sub Header n
RAPID or BI
R R
Backoff Indicator0 - 960ms
Questions
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
190/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page190
True / False. RLC is able to provide an ARQ mechanism?
Questions
Wh i f RLC b d f RLC
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
191/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page191
What two sizes of RLC sequence number are used for RLC
UM?
a. 5bits.
b. 7bits.
c. 10bits.
d. 12bits.
Questions
T / F l Th AMD PDU t i l il bl i
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
192/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page192
True / False. The AMD PDU segment is also available in
Release 8 HSPA+ systems?
Questions
Whi h t i d b MAC f l i l h l
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
193/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page193
Which parameter is used by MAC for logical channel
mapping?
Questions
H LCID l il bl f EPS b ?
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
194/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page194
How many LCID values are available for EPS bearers?
a. 4.
b. 8.
c. 10. d. 12.
Contents
1 EPS Architecture
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
195/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page195
1. EPS Architecture
2. EPS Protocols
3. LTE/SAE Quality of Service
4. Radio Resource Control
5. Packet Data Convergence Protocol
6. Radio Link Control and Medium Access Control
7. X2/S1 Interface and Protocols
8. Mobility in LTE
Contents
7 X2/S1 Interface and Protocols
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
196/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page196
7. X2/S1 Interface and Protocols
7.1 X2AP Functions and Procedures
7.2 S1AP Functions and Procedures
7.3 User Plane GTP Functions and Procedures
Contents
7 X2/S1 Interface and Protocols
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
197/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page197
7. X2/S1 Interface and Protocols
7.1 X2AP Functions and Procedures
7.2 S1AP Functions and Procedures
7.3 User Plane GTP Functions and Procedures
X2AP Functions and Procedures
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
198/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page198
E-UTRAN
X2
eNB
eNB
IP
Layer 2
Layer 1
SCTP
X2AP
IP
Layer 2
Layer 1
UDP
GTP-U
Control Plane User Plane
IPRNL
TNL
Mapping between X2AP Functionsand X2AP EPs
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
199/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page199
Function Elementary Procedure(s)Mobility Management a) Handover Preparation.
b) SN Status Transfer.
c) UE Context Release.
d) Handover Cancel.
Load Management a) Load Indication.
b) Resource Status Reporting Initiation.
c) Resource Status Reporting.
Reporting of General Error Situations Error Indication.
Resetting the X2 Reset.
Setting up the X2 X2 Setup.
eNB Configuration Update eNB Configuration Update.
X2 Elementary Procedures (Class1)
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
200/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page200
Elementary Procedure Initiating
Message
Successful Outcome Unsuccessful Outcome
Response message Response message
Handover Preparation HANDOVER
REQUEST
HANDOVER REQUEST
ACKNOWLEDGE
HANDOVER PREPARATION
FAILURE
Reset RESET REQUEST RESET RESPONSE
X2 Setup X2 SETUP
REQUEST
X2 SETUP RESPONSE X2 SETUP FAILURE
eNB Configuration Update ENB
CONFIGURATIO
N UPDATE
ENB CONFIGURATION UPDATE
ACKNOWLEDGE
ENB CONFIGURATION UPDATE
FAILURE
Resource Status Reporting
Initiation
RESOURCE
STATUS
REQUEST
RESOURCE STATUS RESPONSE RESOURCE STATUS FAILURE
X2 Elementary Procedures (Class2)
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
201/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page201
Elementary Procedure Initiating Message
Load Indication LOAD INFORMATION
Handover Cancel HANDOVER CANCEL
SN Status Transfer SN STATUS TRANSFER
UE Context Release UE CONTEXT RELEASE
Resource Status Reporting RESOURCE STATUS UPDATE
Error Indication ERROR INDICATION
Message Formatting
Presence
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
202/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Presence
Range
Criticality
Page202
Basic Mobility Procedures -Handover Preparation
Handover Request
Old eNB UE X2AP ID
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
203/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page203
Cause
ECGIGUMMEI
UE Context Information
- MME UE S1AP ID
- UE Security Capabilities
- AS Security Information
- UE Aggregate Maximum Bit Rate
- Subscriber Profile ID for RAT/Frequency Priority
- E-RAB To Be Setup List
UE History Information
Trace Activation (O)
SRVCC Operation Possible (O)
Handover Request Acknowledge
Old eNB UE X2AP ID
New eNB UE X2AP ID
E-RABs Admitted List
E-RABs Not Admitted List (O)
Target eNB To Source eNB Transparent Container
Crit icality Diagnostics (O)
Handover Request
Handover Request Acknowledge
eNB eNBSource Target
X2 Handover Preparation Failure
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
204/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Handover Request
Handover Preparation Failure
eNB eNB
Source Target
Page204
Handover Preparation Failure
Old eNB UE X2AP ID
Cause
Criticality Diagnostics (O)
X2 SN Status Transfer
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
205/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page205
SN Status Transfer
eNB eNB
SN Status TransferOld eNB UE X2AP ID
New eNB UE X2AP ID
E-RABs Subject To Status Transfer List
- E-RAB ID
- Receive Status Of UL PDCP SDUs (O)
- UL COUNT Value- DL COUNT Value
Source Target
X2 UE Context Release
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
206/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page206
UE Context Release
eNB eNB
UE Context Release
Old eNB UE X2AP ID
New eNB UE X2AP ID
Source Target
X2 Handover Cancel
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
207/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page207
Handover Cancel
eNB eNB
Handover Cancel
Old eNB UE X2AP ID
New eNB UE X2AP ID
CauseSource Target
X2 Load Indication
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
208/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page208
Load Indication
eNB eNB
Load IndicationCell Information
- Cell Information Item
-- Cell ID
-- UL Interference Overload Indication
-- UL High Interference Information
--- Target Cell ID--- UL High Interference Indication
--- RNTP (Relative Narrowband Tx Power)
X2 Uplink Interference
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
209/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved.
Medium
eNB
Medium Medium High High
PRB 0 PRB 1 PRB 2 PRB 3 PRB 4
Low
PRB 5
0 1 1 0 0 0
Page209
UL Interference
Overload Indication
UL High Interference
Information (bitmap)
Downlink RNTP
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
210/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page210
eNB
Downlink
Power
PRB 1 PRB 2 PRB 3 PRB 4 PRB 5PRB 0
1 0 0 1 1 1
RNTP (Relative
Narrowband Tx Power)
Bitmap and Parameters
X2 Resource Status Request
Resource Status Request
-
7/22/2019 OEA000200 LTE Protocols and Procedures ISSUE 1.01
211/279
Copyright 2010 Huawei Technologies Co., Ltd. All rights reserved. Page211
eNB1 Measurement ID
eNB2 Measurement ID (C) - If Registration Stop
Registration Request - Start or Stop
Report Characteristics (O)
Cell To Report
Reporting Periodicity (O)
Resource Status Response
eNB1 Measurement ID
eNB2 Measurement ID
Criticality Diagnostics (O)
Resource Status Request
Resource Status Response
eNB eNB
X2 Resource Status Update