03_LTE Capacity areas and and cell resource.pdf
mahmoudsafaei1987
83 views
117 slides
Aug 25, 2024
Slide 1 of 117
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
About This Presentation
03_LTE Capacity areas and and cell resource.pdf
Slide Content
Capacity areas and cell resource measurements
•Capacity areas
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
•Capacity areas
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas
LTE-UE
MME
S6a
Serving
Gateway
S1-U
Evolved Node B
(eNB)
X2
LTE-Uu
HSS
Mobility
Management
Entity
eNB
M8000 S1AP Measurements
S1 setup
Number of S1 connections
M8001 Cell Load Measurements
M8011 Cell Resource Measurement
M8012 Cell Throughput Measurements
M8020 Cell Availability Measurements
M8005 UL Power and Quality Measurements
M8010 DL Power and Quality Measurements
M8004 Transport Measurements
Data volume on X2
Throughput on X2
M8018 eNodeBLoad Measurements
Number of UE
See chapter 6
Measurement areas within NW architecture
LTE-UE
MME
S6a
Serving
Gateway
S1-U
Evolved Node B
(eNB)
X2
LTE-Uu
HSS
Mobility
Management
Entity
eNB
M8000 S1AP Measurements
S1 setup
Number of S1 connections
M8001 Cell Load Measurements
M8011 Cell Resource Measurement
M8012 Cell Throughput Measurements
M8020 Cell Availability Measurements
M8005 UL Power and Quality Measurements
M8010 DL Power and Quality Measurements
M8004 Transport Measurements
Data volume on X2
Throughput on X2
M8018 eNodeBLoad Measurements
Number of UE
See chapter 6
Measurement areas within NW architecture
Resource blocks & physical CH allocation (DL)
M8011 Cell Resource Measurements
Allocation of physical resource blocks (DL)
Utilization of physical resource blocks (DL)....
12 subcarriers
Time
Frequency
0.5 ms slot
1 ms subframe
or TTI
Resource
block 72 central subcarriers = 6
RBs
(minimum LTE Bandwidth = 1.4 MHz) PCFICH
DL RS
PHICH
PDCCH
PDSCH UE1
PDSCH UE2
Resource
Element
Resource
Block (RB)
12 subcarriers =
180 kHz
7OFDM
symbols* x
12 subcarriers
5 RBs allocated
to UE
a
1 RB
allocated
to UE
b
Capacity areas
M8011 Cell Resource Measurements
Allocation of physical resource blocks (DL)
Utilization of physical resource blocks (DL)....
12 subcarriers
Time
Frequency
0.5 ms slot
1 ms subframe
or TTI
Resource
block 72 central subcarriers = 6
RBs
(minimum LTE Bandwidth = 1.4 MHz) PCFICH
DL RS
PHICH
PDCCH
PDSCH UE1
PDSCH UE2
Resource
Element
Resource
Block (RB)
12 subcarriers =
180 kHz
7OFDM
symbols* x
12 subcarriers
5 RBs allocated
to UE
a
1 RB
allocated
to UE
b
Capacity areas
total UL bandwidth
frequency
Subframe= 1 ms
PUCCH
PUCCH
PUSCH
1 Resource Block RB
Frequency
hopping
Slot
Resource blocks & physical CH allocation (UL)
M8011 Cell Resource Measurements
Allocation of physical resource blocks (UL)
Utilization of physical resource blocks (UL)
PUCCH & PUSCH allocation
consider Physical Uplink Control Channel
carries UL control information (in the
absence of UL data)
The PUCCH is never transmitted
simultaneously with the PUSCH from the
same UE
Capacity areas
total UL bandwidth
frequency
Subframe= 1 ms
PUCCH
PUCCH
PUSCH
1 Resource Block RB
Frequency
hopping
Slot
Resource blocks & physical CH allocation (UL)
M8011 Cell Resource Measurements
Allocation of physical resource blocks (UL)
Utilization of physical resource blocks (UL)
PUCCH & PUSCH allocation
consider Physical Uplink Control Channel
carries UL control information (in the
absence of UL data)
The PUCCH is never transmitted
simultaneously with the PUSCH from the
same UE
Capacity areas
•M8001 Cell Load Measurements
–PDCP SDU delay on DL/UL DTCH
–RACH setup
–Transmitted Transport blocks on PCH, BCH and SCH (UL/DL)
–Transmission on PDSCH and PUSCH classified per MCS
–The number of transmissions on PDSCH over the measurement period usingMCS
–The number of unsuccessful transmissions on PDSCH using MCS
–The number of unacknowledged transmissions on PDSCH using MCS
–RLC SDUs on PCCH, BCCH, CCCH (UL/DL), DCCH (UL/DL) and DTCH (UL/DL)
–PDCP SDUs on DTCH (UL/DL)
–Number of Ues
–Average Dl latency per GBR QCI
–BLER based on NACK/ACK ratio
•M8011 Cell Resource Measurements
–Allocation of physical resource blocks (UL/DL)
–Utilization of physical resource blocks (UL/DL)
–PDCCH usage per Aggregation level
–Number of OFDM symbols used for subframesignalling
Capacity Related Measurements (Overview)
–PDCP SDU delay on DL/UL DTCH
–RACH setup
–Transmitted Transport blocks on PCH, BCH and SCH (UL/DL)
–Transmission on PDSCH and PUSCH classified per MCS
–The number of transmissions on PDSCH over the measurement period usingMCS
–The number of unsuccessful transmissions on PDSCH using MCS
–The number of unacknowledged transmissions on PDSCH using MCS
–RLC SDUs on PCCH, BCCH, CCCH (UL/DL), DCCH (UL/DL) and DTCH (UL/DL)
–PDCP SDUs on DTCH (UL/DL)
–Number of Ues
–Average Dl latency per GBR QCI
–BLER based on NACK/ACK ratio
•M8011 Cell Resource Measurements
–Allocation of physical resource blocks (UL/DL)
–Utilization of physical resource blocks (UL/DL)
–PDCCH usage per Aggregation level
–Number of OFDM symbols used for subframesignalling
Capacity Related Measurements (Overview)
•M8012 Cell Throughput Measurements
–Data volume on BCH and SCH (UL/DL)
–MAC-PDU volume on PUSCH and PDSCH
–MAC-SDU volume on PCCH, BCCH, CCCH (UL/DL), DCCH (UL/DL), DTCH (UL/DL)
–RLC-SDU volume and throughput on DCCH (UL/DL) and DTCH (UL/DL)
–PDCP-SDU volume and throughput (UL/DL)
•M8020 Cell Availability Measurements
–Cell availability and unavailability
•M8005 UL Power and Quality Measurements
–RSSI on PUCCH and PUSCH
–UE power control headroom on PUSCH
–SINR on PUCCH and PUSCH
–UL upgrade / downgrade by AMC
•M8010 DL Power and Quality Measurements
–CQI
–UE Reported CQI Level 00, e.g. CQI 0 is reported by UE. (From CQI 0 to 15)
–CQI offset
–MIMO modes
–PDCCH used for retransmission
Capacity Related Measurements (Overview)
–Data volume on BCH and SCH (UL/DL)
–MAC-PDU volume on PUSCH and PDSCH
–MAC-SDU volume on PCCH, BCCH, CCCH (UL/DL), DCCH (UL/DL), DTCH (UL/DL)
–RLC-SDU volume and throughput on DCCH (UL/DL) and DTCH (UL/DL)
–PDCP-SDU volume and throughput (UL/DL)
•M8020 Cell Availability Measurements
–Cell availability and unavailability
•M8005 UL Power and Quality Measurements
–RSSI on PUCCH and PUSCH
–UE power control headroom on PUSCH
–SINR on PUCCH and PUSCH
–UL upgrade / downgrade by AMC
•M8010 DL Power and Quality Measurements
–CQI
–UE Reported CQI Level 00, e.g. CQI 0 is reported by UE. (From CQI 0 to 15)
–CQI offset
–MIMO modes
–PDCCH used for retransmission
Capacity Related Measurements (Overview)
LTE944: PUSCH masking
ThePUSCH blankingfeatureallowsto overcometheregulatory limitationsof certainzonesintheuplink
Thisallowstheopertatorsto deployLTE inwidersystem bandwidth, ratherthanintwoseparatesmaller
systems
•Obviousbenefitsindownlinkcapacityand especiallypeakthroughputs(userexperience, marketing
reasons)
•No needfor inter-frequencymeasurementsand handovers(measurementgaps!), loadbalancing
etc.
uplink downlink uplink downlink
5 MHz+ 10 MHz 20 MHz+ PUSCH blanking
Combinedcapacity: 100Mbps
(32+68)
Capacity: 142Mbps
ThePUSCH blankingfeatureallowsto overcometheregulatory limitationsof certainzonesintheuplink
Thisallowstheopertatorsto deployLTE inwidersystem bandwidth, ratherthanintwoseparatesmaller
systems
•Obviousbenefitsindownlinkcapacityand especiallypeakthroughputs(userexperience, marketing
reasons)
•No needfor inter-frequencymeasurementsand handovers(measurementgaps!), loadbalancing
etc.
uplink downlink uplink downlink
5 MHz+ 10 MHz 20 MHz+ PUSCH blanking
Combinedcapacity: 100Mbps
(32+68)
Capacity: 142Mbps
LTE1089 –Carrier Aggregation
•A regular cell is paired with additional logical cell
serving the same site sector.
•LTE 1089 supports onlyinter-band carrier
aggregation with specific constraints with respect
to bands that are allowed to be paired.
•Only non-GBR data could be sent via secondary
cell
•All cells handling CA (Carrier Aggregation) UEs
serve simultaneously also regular, non-CA UEs
•There is no carrier aggregation in the uplink
direction
PRIMARY
CELL
SECONDARY CELL
CA capable UE
Carrier 1
Carrier 2
•A regular cell is paired with additional logical cell
serving the same site sector.
•LTE 1089 supports onlyinter-band carrier
aggregation with specific constraints with respect
to bands that are allowed to be paired.
•Only non-GBR data could be sent via secondary
cell
•All cells handling CA (Carrier Aggregation) UEs
serve simultaneously also regular, non-CA UEs
•There is no carrier aggregation in the uplink
direction
PRIMARY
CELL
SECONDARY CELL
CA capable UE
Carrier 1
Carrier 2
LTE1332: Downlink carrier aggregation -40 MHz
•Additionalcell bandwidth combinations are supported:
M8001C494 Average number of DL carrier aggregated capable UEs
M8001C495 Average number of UEs with a configured SCell
M8001C496 Average number of UEs with an activated SCell
BW1 BW2
5 MHz 5 MHz
5 MHz 10 MHz
10 MHz 10 MHz
5 MHz 15 MHz
5 MHz 20 MHz
10 MHz 15 MHz
10 MHz 20 MHz
15 MHz 15 MHz
15 MHz 20 MHz
20 MHz 20 MHz
All these new combinations are supported by FSMF only
Supported already
Supported already
Supported already
•Additionalcell bandwidth combinations are supported:
M8001C494 Average number of DL carrier aggregated capable UEs
M8001C495 Average number of UEs with a configured SCell
M8001C496 Average number of UEs with an activated SCell
BW1 BW2
5 MHz 5 MHz
5 MHz 10 MHz
10 MHz 10 MHz
5 MHz 15 MHz
5 MHz 20 MHz
10 MHz 15 MHz
10 MHz 20 MHz
15 MHz 15 MHz
15 MHz 20 MHz
20 MHz 20 MHz
All these new combinations are supported by FSMF only
Supported already
Supported already
Supported already
LTE1089 –Carrier Aggregation
M8012C151 PCell RLC data volume in DL via SCell
RLC_PDU_VOL_TRANSMITTED
PDCP
RLC
MAC
PHY
PDCP
MAC
PHY
Cell A Cell B
PCellA PcellB
Scellfor
PcellA
Scellfor
PcellB
RLC
RLC_PDU_DL_VOL_CA_SCELL
RRC:RRCConnectionReconfiguration(SCellToAddModList-r10)
eNB
UE
RRC:RRCConnectionReconfigurationComplete(SCellToAddModList-r10)
M8011C67 Number of SCell configuration attempts
M8011C68 Number of successful SCell configurations
M8012C151 PCell RLC data volume in DL via SCell
RLC_PDU_VOL_TRANSMITTED
PDCP
RLC
MAC
PHY
PDCP
MAC
PHY
Cell A Cell B
PCellA PcellB
Scellfor
PcellA
Scellfor
PcellB
RLC
RLC_PDU_DL_VOL_CA_SCELL
RRC:RRCConnectionReconfiguration(SCellToAddModList-r10)
eNB
UE
RRC:RRCConnectionReconfigurationComplete(SCellToAddModList-r10)
M8011C67 Number of SCell configuration attempts
M8011C68 Number of successful SCell configurations
LTE1332: Downlink carrier aggregation
Performance management
•No new counters have been introduced by LTE1332.
•No counters have been modified by LTE1332.
Counter number Counter name Description
M8001C494 CA_DL_CAP_UE_AVG Average number of DL carrier aggregated capable UEs
M8001C495 CA_SCELL_CONF_UE_AVG Average number of UEs with a configured Scell
M8001C496 CA_SCELL_ACTIVE_UE_AVG Average number of UEs with anactivatedScell
M8011C67 CA_SCELL_CONFIG_ATT Number of SCellconfiguration attempts
M8011C68 CA_SCELL_CONFIG_SUCC Number of successful SCellconfigurations
M8012C151 RLC_PDU_DL_VOL_CA_SCELL PCellRLC data volume in DLvia Scell
Performance management
•No new counters have been introduced by LTE1332.
•No counters have been modified by LTE1332.
Counter number Counter name Description
M8001C494 CA_DL_CAP_UE_AVG Average number of DL carrier aggregated capable UEs
M8001C495 CA_SCELL_CONF_UE_AVG Average number of UEs with a configured Scell
M8001C496 CA_SCELL_ACTIVE_UE_AVG Average number of UEs with anactivatedScell
M8011C67 CA_SCELL_CONFIG_ATT Number of SCellconfiguration attempts
M8011C68 CA_SCELL_CONFIG_SUCC Number of successful SCellconfigurations
M8012C151 RLC_PDU_DL_VOL_CA_SCELL PCellRLC data volume in DLvia Scell
•Capacity areas
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
QoSfunctions have not been standardized in detail in 3GPP but are
implementation specific
•QoSfunctions
•Admission control
•Bandwidth management based on UE-AMBR (AMBR = aggregate maximum bit rate)
•Bearer and service level bandwidth management
•Bearer and service level DSCP marking (DSCP = differential service code point)
•Queuing and scheduling of packets
•Allocation and Retention Policy (ARP)
QoS Functions
implementation specific
•QoSfunctions
•Admission control
•Bandwidth management based on UE-AMBR (AMBR = aggregate maximum bit rate)
•Bearer and service level bandwidth management
•Bearer and service level DSCP marking (DSCP = differential service code point)
•Queuing and scheduling of packets
•Allocation and Retention Policy (ARP)
QoS Functions
QoSParameters
•Number of QoSparameters has been decreased
•AMBR has been introduced to support bandwidth
•management model similar to fixed access
3G EPS
QCI (QoSClass Identifier)
ARP
Max Bit Rate
Guaranteed Bit Rate
Aggregate Max Bit Rate
For GBR bearers
For non-GBR bearers
Guaranteed Bit rate
Delivery Order
Max SDU Size
SDU Format Information
SDU Error Ratio
Residual Bit Error Ratio
Delivery of Erroneous
SDUs
Transfer Delay
Traffic Handling Priority
ARP
Source Statistics
Descriptor
Signaling Indication
Max Bit rate
Traffic Class
•Number of QoSparameters has been decreased
•AMBR has been introduced to support bandwidth
•management model similar to fixed access
3G EPS
QCI (QoSClass Identifier)
ARP
Max Bit Rate
Guaranteed Bit Rate
Aggregate Max Bit Rate
For GBR bearers
For non-GBR bearers
Guaranteed Bit rate
Delivery Order
Max SDU Size
SDU Format Information
SDU Error Ratio
Residual Bit Error Ratio
Delivery of Erroneous
SDUs
Transfer Delay
Traffic Handling Priority
ARP
Source Statistics
Descriptor
Signaling Indication
Max Bit rate
Traffic Class
QoSParameters (EPS)
•QoSClass Identifier (QCI)
•Used to determine packet forwarding treatment (e.g. scheduling of packets)
•Used to mark packets with DSCP (Differential Service Code Point)
•3GPP has standardized 9 QCI values and mapped to resource type (GBR, non-GBR), priority, packet delay budget and packet
error loss rate
•Allocation and Retention Priority (ARP)
•Used to decide whether bearer establishment or modification request can be accepted in case of resource limitations
•Can also be used to decide which bearer to drop during resource limitations
•According 3GPP ARP has no impact on packet forwarding treatment
•APN AMBR and UE AMPR for non-GBR EPS bearers
•APN-AMBR shared by all non-GBR EPS bearers with the same APN –downlink enforcement is done in PDN GW and uplink
enforcement in UE
•UE-AMBR shared by all non-GBR EPS bearers of the UE –downlink and uplink enforcement is done in eNB
•Guaranteed Bit Rate (GBR) and Max Bit Rate (MBR) for GBR EPS bearers
•QoSClass Identifier (QCI)
•Used to determine packet forwarding treatment (e.g. scheduling of packets)
•Used to mark packets with DSCP (Differential Service Code Point)
•3GPP has standardized 9 QCI values and mapped to resource type (GBR, non-GBR), priority, packet delay budget and packet
error loss rate
•Allocation and Retention Priority (ARP)
•Used to decide whether bearer establishment or modification request can be accepted in case of resource limitations
•Can also be used to decide which bearer to drop during resource limitations
•According 3GPP ARP has no impact on packet forwarding treatment
•APN AMBR and UE AMPR for non-GBR EPS bearers
•APN-AMBR shared by all non-GBR EPS bearers with the same APN –downlink enforcement is done in PDN GW and uplink
enforcement in UE
•UE-AMBR shared by all non-GBR EPS bearers of the UE –downlink and uplink enforcement is done in eNB
•Guaranteed Bit Rate (GBR) and Max Bit Rate (MBR) for GBR EPS bearers
Service Differentiation for Non-GBR EPS Bearer
QCI Resource
Type
PriorityPacket
Delay
Budget
Packet
Error Loss
Rate
Example Services
1
GBR
2 100ms 10
-2
Conversational Voice
2 4 150ms 10
-3
Conversational Video (Live Streaming)
3 3 50ms 10
-3
Real Time Gaming
4 5 300ms 10
-6
Non-Conversational Video (Buffered Streaming)
5
Non-GBR
1 100ms 10
-6
IMS Signalling
6
6 300ms 10
-6
Video (Buffered Streaming)
TCP-based (e.g., www, e-mail, chat, ftp, p2p file
sharing, progressive video, etc.)
7
7 100ms 10
-3
Voice,
Video (Live Streaming)
Interactive Gaming
8
8 300ms
10
-6 Video (Buffered Streaming)
TCP-based (e.g., www, e-mail, chat, ftp, p2p file
sharing, progressive video, etc.)9 9 300ms 10
-6
QCI (QoSClass Identifier) based service differentiation
•Support of QCI 1,2,3,4 GBR QCI Classes with Delay
based scheduling and priority classification.
•Support of up to 21 Operator Specific QCI’s in the
range 128 to 254 non GBR
•Differentiation of 5 different non-GBR QCI classes
with relative scheduling weights
-QCIs: 5,6,7,8,9
-Flexi Multiradioallows to assign relative scheduling
weights for each non GBR QCI on cell level
•The relative weight or delay is considered by the UL
and DL scheduler
•Default bearers are set up withQCI 9(for non-
privileged users) or QCI 8(for premium users)
Feature ID(s): LTE9, LTE10 ,LTE496, LTE518
QCI Resource
Type
PriorityPacket
Delay
Budget
Packet
Error Loss
Rate
Example Services
1
GBR
2 100ms 10
-2
Conversational Voice
2 4 150ms 10
-3
Conversational Video (Live Streaming)
3 3 50ms 10
-3
Real Time Gaming
4 5 300ms 10
-6
Non-Conversational Video (Buffered Streaming)
5
Non-GBR
1 100ms 10
-6
IMS Signalling
6
6 300ms 10
-6
Video (Buffered Streaming)
TCP-based (e.g., www, e-mail, chat, ftp, p2p file
sharing, progressive video, etc.)
7
7 100ms 10
-3
Voice,
Video (Live Streaming)
Interactive Gaming
8
8 300ms
10
-6 Video (Buffered Streaming)
TCP-based (e.g., www, e-mail, chat, ftp, p2p file
sharing, progressive video, etc.)9 9 300ms 10
-6
QCI (QoSClass Identifier) based service differentiation
•Support of QCI 1,2,3,4 GBR QCI Classes with Delay
based scheduling and priority classification.
•Support of up to 21 Operator Specific QCI’s in the
range 128 to 254 non GBR
•Differentiation of 5 different non-GBR QCI classes
with relative scheduling weights
-QCIs: 5,6,7,8,9
-Flexi Multiradioallows to assign relative scheduling
weights for each non GBR QCI on cell level
•The relative weight or delay is considered by the UL
and DL scheduler
•Default bearers are set up withQCI 9(for non-
privileged users) or QCI 8(for premium users)
Feature ID(s): LTE9, LTE10 ,LTE496, LTE518
•Services are transferred by bearers which are mapped to QCIs.
•At the edge of the transport domain QCIs are mapped to DSCP codes
and then associated with respective DiffServPHB classes.
Support of QCI 2, 3 and 4
LTE Radio domain
LTE Traffic Class QCI
Resource
Type
Conversational Voice 1
GBR
Conversational Video 2
Real-time Gaming 3
Non-conversational Video 4
IMS singaling 5
Non-GBR
Voice, video, interactive gaming 6
Video (buffered streaming) 7
TCP-based (e.g. www, e-mail, ftp,
p2p filesharing, etc.)
8
9
LTE Transport domain
DSCP DiffServ
PHB
Ethernet p-
bits
46 EF 7
36 AF42 5
46 EF 7
26 AF31 3
34 AF41 4
18 AF21 2
20 AF22 2
10 AF11 1
0 BE 0
Descriptions:
DSCP
Differentiale Service Code Point. Diff.
Serv. (QoS) uses 6-bit DSCP field in
the header of IP packets for packet
classification purposes
EF
expedited forwarding (highest IP
service class)
AF
assured forwarding (4 IP service
classes, 4 / 1 = very high / low priority)
BE
best effort (lowest IP service class)
IP QoS parameters
packet delay / loss / jitter
•At the edge of the transport domain QCIs are mapped to DSCP codes
and then associated with respective DiffServPHB classes.
Support of QCI 2, 3 and 4
LTE Radio domain
LTE Traffic Class QCI
Resource
Type
Conversational Voice 1
GBR
Conversational Video 2
Real-time Gaming 3
Non-conversational Video 4
IMS singaling 5
Non-GBR
Voice, video, interactive gaming 6
Video (buffered streaming) 7
TCP-based (e.g. www, e-mail, ftp,
p2p filesharing, etc.)
8
9
LTE Transport domain
DSCP DiffServ
PHB
Ethernet p-
bits
46 EF 7
36 AF42 5
46 EF 7
26 AF31 3
34 AF41 4
18 AF21 2
20 AF22 2
10 AF11 1
0 BE 0
Descriptions:
DSCP
Differentiale Service Code Point. Diff.
Serv. (QoS) uses 6-bit DSCP field in
the header of IP packets for packet
classification purposes
EF
expedited forwarding (highest IP
service class)
AF
assured forwarding (4 IP service
classes, 4 / 1 = very high / low priority)
BE
best effort (lowest IP service class)
IP QoS parameters
packet delay / loss / jitter
M8001C227, 228, 229, 230, 235 UEs with buffered DL data for DRB with QCI 1, 2, 3, 4 and non-GBR
M8001C269 Mean PDCP SDU delay on DL DTCH for DRB with QCI 1
M8001C270 Mean PDCP SDU delay on DL DTCH for non-GBR DRB
M8001C271 PDCP SDU delay on DL DTCH Mean for GBR DRBs of QCI 2
M8001C272 PDCP SDU delay on DL DTCH Mean for GBR DRBs of QCI 3
M8001C273 PDCP SDU delay on DL DTCH Mean for GBR DRBs of QCI 4
M8001C269/ LTE_5138a Average Latency Downlink for QCI1 DRBs
M8001C271/ LTE_5556a Average Latency Downlink for QCI2 DRBs
M8001C272/ LTE_5557a Average Latency Downlink for QCI3 DRBs
M8001C273/ LTE_5558a Average Latency Downlink for QCI4 DRBs
M8001C270/ LTE_5139a Average Latency Downlink for Non GBR DRBs
M8001C305 PDCP SDU UL QCI 1
M8001C314, 315, 316, 317 PDCP SDU DL QCI 1, 2, 3, 4
M8001C323, 324, 325, 326 PDCP SDU discarded DL QCI 1, 2, 3, 4
M8006C162, 163, 164 Initial EPS Bearer setup attempts for GBR DRBS of QCI2, QCI3, QCI4
M8006C165, 166, 167 Additional EPS Bearer setup attempts for GBR DRBs of QCI2, QCI3, QCI4
M8006C168, 169, 170 Initial EPS Bearer setup completions for GBR DRBs of QCI2, QCI3, QCI4
M8006C171, 172, 173 Additional EPS Bearer setup completions for GBR DRBs of QCI2, QCI3, QCI4
M8006C176, 177, 178, 179 Released active ERABs QCI1,QCI2, QCI3, QCI4
M8000C181, 182, 183, 184 In-session activity time for QCI1, QCI2, QCI3, QCI4 ERABs
Support of QCI 2, 3 and 4
M8001C269 Mean PDCP SDU delay on DL DTCH for DRB with QCI 1
M8001C270 Mean PDCP SDU delay on DL DTCH for non-GBR DRB
M8001C271 PDCP SDU delay on DL DTCH Mean for GBR DRBs of QCI 2
M8001C272 PDCP SDU delay on DL DTCH Mean for GBR DRBs of QCI 3
M8001C273 PDCP SDU delay on DL DTCH Mean for GBR DRBs of QCI 4
M8001C269/ LTE_5138a Average Latency Downlink for QCI1 DRBs
M8001C271/ LTE_5556a Average Latency Downlink for QCI2 DRBs
M8001C272/ LTE_5557a Average Latency Downlink for QCI3 DRBs
M8001C273/ LTE_5558a Average Latency Downlink for QCI4 DRBs
M8001C270/ LTE_5139a Average Latency Downlink for Non GBR DRBs
M8001C305 PDCP SDU UL QCI 1
M8001C314, 315, 316, 317 PDCP SDU DL QCI 1, 2, 3, 4
M8001C323, 324, 325, 326 PDCP SDU discarded DL QCI 1, 2, 3, 4
M8006C162, 163, 164 Initial EPS Bearer setup attempts for GBR DRBS of QCI2, QCI3, QCI4
M8006C165, 166, 167 Additional EPS Bearer setup attempts for GBR DRBs of QCI2, QCI3, QCI4
M8006C168, 169, 170 Initial EPS Bearer setup completions for GBR DRBs of QCI2, QCI3, QCI4
M8006C171, 172, 173 Additional EPS Bearer setup completions for GBR DRBs of QCI2, QCI3, QCI4
M8006C176, 177, 178, 179 Released active ERABs QCI1,QCI2, QCI3, QCI4
M8000C181, 182, 183, 184 In-session activity time for QCI1, QCI2, QCI3, QCI4 ERABs
Support of QCI 2, 3 and 4
•Capacity areas
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
Inner Loop Link Quality Control
•Link quality must be known to decide about
-Modulation (UL/DL)
-Coding (UL/DL)
-MIMO mode (DL)
•The decision is taken on the basis of
-CQI (DL)
-BLER (UL)
counter discussion for QoS(link & channel quality) within actual release
available
cell
cell
cell
CQI measurements (inner loop) M8010C36…C51
CQI offset measurements (outer loop) M8010C52/C53/C54
•Link quality must be known to decide about
-Modulation (UL/DL)
-Coding (UL/DL)
-MIMO mode (DL)
•The decision is taken on the basis of
-CQI (DL)
-BLER (UL)
counter discussion for QoS(link & channel quality) within actual release
available
cell
cell
cell
CQI measurements (inner loop) M8010C36…C51
CQI offset measurements (outer loop) M8010C52/C53/C54
Outer Loop Link Quality Control (DL)
Quality Related Measurements DL
•CQI measurements (inner loop)
-M8010C36..C51: CQI histogram
-The histograms work as follows
1.st counter: Number of measurements with CQI = 0
•2.nd counter: Number of measurements with CQI = 1
Continue with steps of 1
Last counter: Number of measurements with CQI = 15
•CQI measurements (inner loop)
-M8010C36..C51: CQI histogram
-The histograms work as follows
1.st counter: Number of measurements with CQI = 0
•2.nd counter: Number of measurements with CQI = 1
Continue with steps of 1
Last counter: Number of measurements with CQI = 15
Quality Related Measurements DL
•CQI offset measurements (outer loop)
-M8010C52/C53/C54: Min/Max/Mean CQI offset (given in units of 0.001)
•CQI offset measurements (outer loop)
-M8010C52/C53/C54: Min/Max/Mean CQI offset (given in units of 0.001)
Quality Related Measurements DL
•CQI measurements (inner loop)
0
50
100
150
200
250
300
350
400
450
UE Reported CQI
UE Reported CQI
•CQI measurements (inner loop)
0
50
100
150
200
250
300
350
400
450
UE Reported CQI
UE Reported CQI
AVG CQI= sum (number
of hits in class_x * x) /
Sum (total number of hits
over all classes)
x = 0, ..., 15
Sum (1*[M8010C37] + 2*[M8010C38] +
3*[M8010C39] + 4*[M8010C40] +
5*[M8010C41] + 6*[M8010C42] +
7*[M8010C43] + 8*[M8010C44] +
9*[M8010C45] + 10*[M8010C46] +
11*[M8010C47] + 12*[M8010C48] +
13*[M8010C49] + 14*[M8010C50] +
15*[M8010C51]) /
Sum ([M8010C36] + [M8010C37] +
[M8010C38] + [M8010C39] +
[M8010C40] + [M8010C41] +
[M8010C42] + [M8010C43] +
[M8010C44] + [M8010C45] +
[M8010C46] + [M8010C47] +
[M8010C48] + [M8010C49] +
[M8010C50] + [M8010C51])
Sum (1*[UE_REP_CQI_LEVEL_01] +
2*[UE_REP_CQI_LEVEL_02] +
3*[UE_REP_CQI_LEVEL_03] + 4*[UE_REP_CQI_LEVEL_04] +
5*[UE_REP_CQI_LEVEL_05] + 6*[UE_REP_CQI_LEVEL_06] +
7*[UE_REP_CQI_LEVEL_07] + 8*[UE_REP_CQI_LEVEL_08] +
9*[UE_REP_CQI_LEVEL_09] + 10*[UE_REP_CQI_LEVEL_10] +
11*[UE_REP_CQI_LEVEL_11] + 12*[UE_REP_CQI_LEVEL_12] +
13*[UE_REP_CQI_LEVEL_13] + 14*[UE_REP_CQI_LEVEL_14] +
15*[UE_REP_CQI_LEVEL_15]) /
Sum ([UE_REP_CQI_LEVEL_00] + [UE_REP_CQI_LEVEL_01] +
[UE_REP_CQI_LEVEL_02] + [UE_REP_CQI_LEVEL_03] +
[UE_REP_CQI_LEVEL_04] + [UE_REP_CQI_LEVEL_05] +
[UE_REP_CQI_LEVEL_06] + [UE_REP_CQI_LEVEL_07] +
[UE_REP_CQI_LEVEL_08] + [UE_REP_CQI_LEVEL_09] +
[UE_REP_CQI_LEVEL_10] + [UE_REP_CQI_LEVEL_11] +
[UE_REP_CQI_LEVEL_12] + [UE_REP_CQI_LEVEL_13] +
[UE_REP_CQI_LEVEL_14] + [UE_REP_CQI_LEVEL_15])
LTE_5427a E-UTRAN Average CQI
Shows the average UE reported Channel Quality Indicator (CQI) value
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
Note; CQI 0
not included in
numerator only
in denominator
Quality Related KPIs DL
of hits in class_x * x) /
Sum (total number of hits
over all classes)
x = 0, ..., 15
Sum (1*[M8010C37] + 2*[M8010C38] +
3*[M8010C39] + 4*[M8010C40] +
5*[M8010C41] + 6*[M8010C42] +
7*[M8010C43] + 8*[M8010C44] +
9*[M8010C45] + 10*[M8010C46] +
11*[M8010C47] + 12*[M8010C48] +
13*[M8010C49] + 14*[M8010C50] +
15*[M8010C51]) /
Sum ([M8010C36] + [M8010C37] +
[M8010C38] + [M8010C39] +
[M8010C40] + [M8010C41] +
[M8010C42] + [M8010C43] +
[M8010C44] + [M8010C45] +
[M8010C46] + [M8010C47] +
[M8010C48] + [M8010C49] +
[M8010C50] + [M8010C51])
Sum (1*[UE_REP_CQI_LEVEL_01] +
2*[UE_REP_CQI_LEVEL_02] +
3*[UE_REP_CQI_LEVEL_03] + 4*[UE_REP_CQI_LEVEL_04] +
5*[UE_REP_CQI_LEVEL_05] + 6*[UE_REP_CQI_LEVEL_06] +
7*[UE_REP_CQI_LEVEL_07] + 8*[UE_REP_CQI_LEVEL_08] +
9*[UE_REP_CQI_LEVEL_09] + 10*[UE_REP_CQI_LEVEL_10] +
11*[UE_REP_CQI_LEVEL_11] + 12*[UE_REP_CQI_LEVEL_12] +
13*[UE_REP_CQI_LEVEL_13] + 14*[UE_REP_CQI_LEVEL_14] +
15*[UE_REP_CQI_LEVEL_15]) /
Sum ([UE_REP_CQI_LEVEL_00] + [UE_REP_CQI_LEVEL_01] +
[UE_REP_CQI_LEVEL_02] + [UE_REP_CQI_LEVEL_03] +
[UE_REP_CQI_LEVEL_04] + [UE_REP_CQI_LEVEL_05] +
[UE_REP_CQI_LEVEL_06] + [UE_REP_CQI_LEVEL_07] +
[UE_REP_CQI_LEVEL_08] + [UE_REP_CQI_LEVEL_09] +
[UE_REP_CQI_LEVEL_10] + [UE_REP_CQI_LEVEL_11] +
[UE_REP_CQI_LEVEL_12] + [UE_REP_CQI_LEVEL_13] +
[UE_REP_CQI_LEVEL_14] + [UE_REP_CQI_LEVEL_15])
LTE_5427a E-UTRAN Average CQI
Shows the average UE reported Channel Quality Indicator (CQI) value
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
Note; CQI 0
not included in
numerator only
in denominator
Quality Related KPIs DL
9.0
9.5
10.0
10.5
11.0
11.5
23.05.2011 25.05.2011 27.05.2011 29.05.2011 31.05.2011 02.06.2011 04.06.2011 06.06.2011 09.06.2011 11.06.2011 13.06.2011 15.06.2011 17.06.2011 19.06.2011 21.06.2011
LTE_5427a Average CQI…
Quality Related KPIs DL
9.5
10.0
10.5
11.0
11.5
23.05.2011 25.05.2011 27.05.2011 29.05.2011 31.05.2011 02.06.2011 04.06.2011 06.06.2011 09.06.2011 11.06.2011 13.06.2011 15.06.2011 17.06.2011 19.06.2011 21.06.2011
LTE_5427a Average CQI…
Quality Related KPIs DL
AVG CQI Offset = average
of measured CQI offset
values
Avg ([M8010C54]) Avg ([CQI_OFF_MEAN])
LTE_5432b E-UTRAN Average CQI Offset
Shows the average eNodeBused offset (correction) value for Channel Quality Indicators
(CQI)
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
Quality Related KPIs DL
of measured CQI offset
values
Avg ([M8010C54]) Avg ([CQI_OFF_MEAN])
LTE_5432b E-UTRAN Average CQI Offset
Shows the average eNodeBused offset (correction) value for Channel Quality Indicators
(CQI)
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
Quality Related KPIs DL
•Capacity areas
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
Inner Loop Link Adaptation (DL)
eNodeB
Link
adaptation
DL Adaptive Modulation & Coding shall select its scheme table
according to the radio CH conditions (CQI)
PwR
MCS 20
MCS 9
MCS 16
5/5
CQI 15
1/5
2/5 Original Transmission
ACK/NACK
n Retransmissions
Actual CQI is estimated
by UE including
ACK/NACK feedback
from L1/L2, reported to
eNodeB
Actual MCSwill be performed by
BLER/CQI.
In case of retransmission the
same MCS is taken as for the
original
Link adaptation adjustment of CQI measurements will be performed by UE
BLER
target
BLER = f (reported CQI, (respectively SINR))
Actual
BLER
3/5
CQI 10
64QAM
16QAM
QPSK
eNodeB
Link
adaptation
DL Adaptive Modulation & Coding shall select its scheme table
according to the radio CH conditions (CQI)
PwR
MCS 20
MCS 9
MCS 16
5/5
CQI 15
1/5
2/5 Original Transmission
ACK/NACK
n Retransmissions
Actual CQI is estimated
by UE including
ACK/NACK feedback
from L1/L2, reported to
eNodeB
Actual MCSwill be performed by
BLER/CQI.
In case of retransmission the
same MCS is taken as for the
original
Link adaptation adjustment of CQI measurements will be performed by UE
BLER
target
BLER = f (reported CQI, (respectively SINR))
Actual
BLER
3/5
CQI 10
64QAM
16QAM
QPSK
MCSs for DL
•DL AMC shall select the MCS to be employed from the tables
according to the radio conditions
•On DL all MCSs specified by 3GPP are available
b
0 b
1
QPSK
Im
Re10
11
00
01
b
0 b
1b
2b
3
16QAM
Im
Re
0000
1111
Im
Re
64QAM
b
0 b
1b
2b
3 b
4 b
5
QPSK
2 bits/symbol
16QAM
4 bits/symbol
64QAM
6 bits/symbol
DL MCSs
MCS ITBS MCS_index Mod order
0-QPSK 0 0 2
1-QPSK 1 1 2
2-QPSK 2 2 2
3-QPSK 3 3 2
4-QPSK 4 4 2
5-QPSK 5 5 2
6-QPSK 6 6 2
7-QPSK 7 7 2
8-QPSK 8 8 2
9-QPSK 9 9 2
10-16QAM 9 10 4
11-16QAM 10 11 4
12-16QAM 11 12 4
13-16QAM 12 13 4
14-16QAM 13 14 4
15-16QAM 14 15 4
16-16QAM 15 16 4
17-64QAM 15 17 6
18-64QAM 16 18 6
19-64QAM 17 19 6
20-64QAM 18 20 6
21-64QAM 19 21 6
22-64QAM 20 22 6
23-64QAM 21 23 6
24-64QAM 22 24 6
25-64QAM 23 25 6
26-64QAM 24 26 6
27-64QAM 25 27 6
28-64QAM 26 28 6
•DL AMC shall select the MCS to be employed from the tables
according to the radio conditions
•On DL all MCSs specified by 3GPP are available
b
0 b
1
QPSK
Im
Re10
11
00
01
b
0 b
1b
2b
3
16QAM
Im
Re
0000
1111
Im
Re
64QAM
b
0 b
1b
2b
3 b
4 b
5
QPSK
2 bits/symbol
16QAM
4 bits/symbol
64QAM
6 bits/symbol
DL MCSs
MCS ITBS MCS_index Mod order
0-QPSK 0 0 2
1-QPSK 1 1 2
2-QPSK 2 2 2
3-QPSK 3 3 2
4-QPSK 4 4 2
5-QPSK 5 5 2
6-QPSK 6 6 2
7-QPSK 7 7 2
8-QPSK 8 8 2
9-QPSK 9 9 2
10-16QAM 9 10 4
11-16QAM 10 11 4
12-16QAM 11 12 4
13-16QAM 12 13 4
14-16QAM 13 14 4
15-16QAM 14 15 4
16-16QAM 15 16 4
17-64QAM 15 17 6
18-64QAM 16 18 6
19-64QAM 17 19 6
20-64QAM 18 20 6
21-64QAM 19 21 6
22-64QAM 20 22 6
23-64QAM 21 23 6
24-64QAM 22 24 6
25-64QAM 23 25 6
26-64QAM 24 26 6
27-64QAM 25 27 6
28-64QAM 26 28 6
Link Adaptation Measurements for DL
•MCS usage
-M8001C45..C73: Histogram for number of PDSCH transmissions with MCS0..MCS28
-M8001C103..C131: Histogram for number of not acknowledged PDSCH transmissions with MCS0..MCS28
-M8001C156..C176 and M8001C202..C209: Histogram for discarded PDSCH transmissions with MCS0..MCS20
and MCS21..MCS28 due to maximum number of retransmissions
M8001C45..C73
Total transmission
M8001C103..C131
Transmission with
feedback NACK
M8001C156..176 and M8001C202..209
Discarded
transmission
•MCS usage
-M8001C45..C73: Histogram for number of PDSCH transmissions with MCS0..MCS28
-M8001C103..C131: Histogram for number of not acknowledged PDSCH transmissions with MCS0..MCS28
-M8001C156..C176 and M8001C202..C209: Histogram for discarded PDSCH transmissions with MCS0..MCS20
and MCS21..MCS28 due to maximum number of retransmissions
M8001C45..C73
Total transmission
M8001C103..C131
Transmission with
feedback NACK
M8001C156..176 and M8001C202..209
Discarded
transmission
MAC Protocol Statistics DL
MAC Protocol & Cell Throughput
Counter Name Expected Value Test Value
TB_VOL_PDSCH_MCS0 0 0
TB_VOL_PDSCH_MCS1 0 0
TB_VOL_PDSCH_MCS2 0 0
TB_VOL_PDSCH_MCS3 0 0
TB_VOL_PDSCH_MCS4 0 0
TB_VOL_PDSCH_MCS5 0 0
TB_VOL_PDSCH_MCS6 0 0
TB_VOL_PDSCH_MCS7 0 0
TB_VOL_PDSCH_MCS8 0 0
TB_VOL_PDSCH_MCS9 0 0
TB_VOL_PDSCH_MCS10 0 0
TB_VOL_PDSCH_MCS11 0 0
TB_VOL_PDSCH_MCS12 0 0
TB_VOL_PDSCH_MCS13 0 0
MAC Protocol & Cell Throughput
Counter Name Expected Value Test Value
TB_VOL_PDSCH_MCS14 0 0
TB_VOL_PDSCH_MCS15 0 0
TB_VOL_PDSCH_MCS16 0 0
TB_VOL_PDSCH_MCS17 0 0
TB_VOL_PDSCH_MCS18 0 0
TB_VOL_PDSCH_MCS19 0 0
TB_VOL_PDSCH_MCS20 0 0
TB_VOL_PDSCH_MCS21 0 0
TB_VOL_PDSCH_MCS22 0 0
TB_VOL_PDSCH_MCS23 0 0
TB_VOL_PDSCH_MCS24 0 0
TB_VOL_PDSCH_MCS25 0 0
TB_VOL_PDSCH_MCS26 0 0
TB_VOL_PDSCH_MCS27 0 0
TB_VOL_PDSCH_MCS28 Very high value 8007280186
MAC Protocol & Cell Throughput
Counter Name Expected Value Test Value
TB_VOL_PDSCH_MCS0 0 0
TB_VOL_PDSCH_MCS1 0 0
TB_VOL_PDSCH_MCS2 0 0
TB_VOL_PDSCH_MCS3 0 0
TB_VOL_PDSCH_MCS4 0 0
TB_VOL_PDSCH_MCS5 0 0
TB_VOL_PDSCH_MCS6 0 0
TB_VOL_PDSCH_MCS7 0 0
TB_VOL_PDSCH_MCS8 0 0
TB_VOL_PDSCH_MCS9 0 0
TB_VOL_PDSCH_MCS10 0 0
TB_VOL_PDSCH_MCS11 0 0
TB_VOL_PDSCH_MCS12 0 0
TB_VOL_PDSCH_MCS13 0 0
MAC Protocol & Cell Throughput
Counter Name Expected Value Test Value
TB_VOL_PDSCH_MCS14 0 0
TB_VOL_PDSCH_MCS15 0 0
TB_VOL_PDSCH_MCS16 0 0
TB_VOL_PDSCH_MCS17 0 0
TB_VOL_PDSCH_MCS18 0 0
TB_VOL_PDSCH_MCS19 0 0
TB_VOL_PDSCH_MCS20 0 0
TB_VOL_PDSCH_MCS21 0 0
TB_VOL_PDSCH_MCS22 0 0
TB_VOL_PDSCH_MCS23 0 0
TB_VOL_PDSCH_MCS24 0 0
TB_VOL_PDSCH_MCS25 0 0
TB_VOL_PDSCH_MCS26 0 0
TB_VOL_PDSCH_MCS27 0 0
TB_VOL_PDSCH_MCS28 Very high value 8007280186
MAC Protocol Statistics
eNBSite Manager Screen Capture
TB_VOL_PDSCH_MCS 28
eNBSite Manager Screen Capture
TB_VOL_PDSCH_MCS 28
PCFICH
REs reserved for
DL Reference Symbols
PHICH
PDCCH
CCE: Control Channel Element
DCI: DL Control Information72 central subcarriers = 6
RBs
(minimum LTE Bandwidth = 1.4 MHz)
1 CCE
= 36 RE
Time
2 CCE
= 72 RE 288
144
72
36
#
REs
8
4
2
1
#
CCEs
PDCCH
Format
# PDCCH bits
0 72
1 144
2 288
3 576288
144
72
36
#
REs
8
4
2
1
#
CCEs
PDCCH
Format
# PDCCH bits
0 72
1 144
2 288
3 576
Channel
Quality
Number of CCEsfor 1 PDCCH may change
from 1 –8 CCEschannel conditions
eNodeB
8 CCE2 CCE 4 CCE
Reservation of
control Ch.
Elements/RE
Bad air interface interferenceconditions
limits available resources for PDCCH and
impacts limits of PDSCH
Example:
1 and 8 CCE's may be used for the
transmission of one PDCCH.
With low
bandwidth
no PDSCH
allocation possible
(macro cell
condition)
Link Adaptation for Signaling (PDCCH)
REs reserved for
DL Reference Symbols
PHICH
PDCCH
CCE: Control Channel Element
DCI: DL Control Information72 central subcarriers = 6
RBs
(minimum LTE Bandwidth = 1.4 MHz)
1 CCE
= 36 RE
Time
2 CCE
= 72 RE 288
144
72
36
#
REs
8
4
2
1
#
CCEs
PDCCH
Format
# PDCCH bits
0 72
1 144
2 288
3 576288
144
72
36
#
REs
8
4
2
1
#
CCEs
PDCCH
Format
# PDCCH bits
0 72
1 144
2 288
3 576
Channel
Quality
Number of CCEsfor 1 PDCCH may change
from 1 –8 CCEschannel conditions
eNodeB
8 CCE2 CCE 4 CCE
Reservation of
control Ch.
Elements/RE
Bad air interface interferenceconditions
limits available resources for PDCCH and
impacts limits of PDSCH
Example:
1 and 8 CCE's may be used for the
transmission of one PDCCH.
With low
bandwidth
no PDSCH
allocation possible
(macro cell
condition)
Link Adaptation for Signaling (PDCCH)
Link Adaptation for Signaling (PDCCH)
These counters are updated with every subframefor which 1,2 or 3 OFDM symbols are
allocated to the PDCCH
These counters are updated with every subframefor which 1,2 or 3 OFDM symbols are
allocated to the PDCCH
1 CCE8 CCE 2 CCE4 CCE
Link Adaptation for Signaling (PDCCH)
Updated when Aggregation Groups1,2.3.4 are used for PDCCH scheduling.
Link Adaptation for Signaling (PDCCH)
Updated when Aggregation Groups1,2.3.4 are used for PDCCH scheduling.
Link Adaptation for Signaling (PDCCH)
•PDCCH utilization
-M8011C39/C40/C41/C42: AGG1 to AGG4 usage
-M8011C43/C44/C45/C46: AGG1 to AGG4 blocked
AGG1
AGG2
AGG4
AGG3
AGG1
AGG2
AGG4
AGG3
AGG1
AGG2
AGG4
AGG3
Measurement period
•PDCCH utilization
-M8011C39/C40/C41/C42: AGG1 to AGG4 usage
-M8011C43/C44/C45/C46: AGG1 to AGG4 blocked
AGG1
AGG2
AGG4
AGG3
AGG1
AGG2
AGG4
AGG3
AGG1
AGG2
AGG4
AGG3
Measurement period
Link Adaptation Measurements for DL
•Performance on RLC level
•If layer 1 re-transmission fails, packets will be affected on higher protocol level
-M8001C137: Number of first RLC transmissions on DL
-M8005C138: Number of RLC retransmissions on DL
M8001C137 +
M8001C138
Total RLC packets
M8001C138
Retransmitted RLC
packets
No counter
Discarded RLC packets
•Performance on RLC level
•If layer 1 re-transmission fails, packets will be affected on higher protocol level
-M8001C137: Number of first RLC transmissions on DL
-M8005C138: Number of RLC retransmissions on DL
M8001C137 +
M8001C138
Total RLC packets
M8001C138
Retransmitted RLC
packets
No counter
Discarded RLC packets
DL RLC PDU ReTrR =
(number of retransmitted RLC PDUs) /
(number all trans RLC PDUs)
Sum ([M8001C138]) / sum
([M8001C137] +
[M8001C138])*100
Sum ([RLC_PDU_RE_TRANS]) / sum
([RLC_PDU_FIRST_TRANS] +
[RLC_PDU_RE_TRANS]) * 100
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
LTE_5208a E-UTRAN RLC PDU Re-transmission Ratio Downlink
Shows the retransmission ratio for RLC PDUs in downlink direction.
Link Adaptation KPIs for DL
(number of retransmitted RLC PDUs) /
(number all trans RLC PDUs)
Sum ([M8001C138]) / sum
([M8001C137] +
[M8001C138])*100
Sum ([RLC_PDU_RE_TRANS]) / sum
([RLC_PDU_FIRST_TRANS] +
[RLC_PDU_RE_TRANS]) * 100
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
LTE_5208a E-UTRAN RLC PDU Re-transmission Ratio Downlink
Shows the retransmission ratio for RLC PDUs in downlink direction.
Link Adaptation KPIs for DL
0.00
0.05
0.10
0.15
0.20
0.25
0.30
23.05.2011 25.05.2011 27.05.2011 29.05.2011 31.05.2011 02.06.2011 04.06.2011 06.06.2011 09.06.2011 11.06.2011 13.06.2011 15.06.2011 17.06.2011 19.06.2011 21.06.2011
LTE_5207a RLC PDU Re-transmission Ratio Uplink (%)
E-UTRAN RLC PDU Re-transmission Ratio
0.05
0.10
0.15
0.20
0.25
0.30
23.05.2011 25.05.2011 27.05.2011 29.05.2011 31.05.2011 02.06.2011 04.06.2011 06.06.2011 09.06.2011 11.06.2011 13.06.2011 15.06.2011 17.06.2011 19.06.2011 21.06.2011
LTE_5207a RLC PDU Re-transmission Ratio Uplink (%)
E-UTRAN RLC PDU Re-transmission Ratio
•Capacity areas
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
Inner Loop Link Adaptation (UL)
eNodeB
Link
adaptation
UL Adaptive Modulation & Coding shall select its scheme
table according to the radio conditions
PwR
MCS 20
MCS 9
MCS 16
5/5
1/5
2/5 Original Transmission
ACK/NACK
n Retransmissions
Actual BLER is estimated by
ACK/NACK feedback from
L1/L2
Actual MCSwill be
performed by
difference of actual
BLER/target BLER
Inner loop link adaptation adjust UE service close to BLER target
BLER
target
BLER = f (SINR)
Actual
BLER
64QAM
16QAM
QPSK
eNodeB
Link
adaptation
UL Adaptive Modulation & Coding shall select its scheme
table according to the radio conditions
PwR
MCS 20
MCS 9
MCS 16
5/5
1/5
2/5 Original Transmission
ACK/NACK
n Retransmissions
Actual BLER is estimated by
ACK/NACK feedback from
L1/L2
Actual MCSwill be
performed by
difference of actual
BLER/target BLER
Inner loop link adaptation adjust UE service close to BLER target
BLER
target
BLER = f (SINR)
Actual
BLER
64QAM
16QAM
QPSK
MCSs for UL
•UL AMC shall select the MCS to be employed from
the tables according to the radio conditions
from MCS 0 to MCS 24
•For Nokia since RL30 MCS 21 to 24 enabled with
Modulation order 4 only
b
0 b
1
QPSK
Im
Re
10
11
00
01
b
0 b
1b
2b
3
16QAM
Im
Re
0000
1111
Im
Re
64QAM
b
0 b
1b
2b
3 b
4 b
5
QPSK
2 bits/symbol
16QAM
4 bits/symbol
64QAM
6 bits/symbol
UL MCSs
MCS ITBS MCS_index Mod order
0-QPSK 0 0 2
1-QPSK 1 1 2
2-QPSK 2 2 2
3-QPSK 3 3 2
4-QPSK 4 4 2
5-QPSK 5 5 2
6-QPSK 6 6 2
7-QPSK 7 7 2
8-QPSK 8 8 2
9-QPSK 9 9 2
10-16QAM 10 10 4
11-16QAM 10 11 4
12-16QAM 11 12 4
13-16QAM 12 13 4
14-16QAM 13 14 4
15-16QAM 14 15 4
16-16QAM 15 16 4
17-16QAM 16 17 6
18-16QAM 17 18 6
19-16QAM 18 19 6
20-16QAM 19 20 6
21-64QAM 19 21 6
22-64QAM 20 22 6
23-64QAM 21 23 6
24-64QAM 22 24 6
•UL AMC shall select the MCS to be employed from
the tables according to the radio conditions
from MCS 0 to MCS 24
•For Nokia since RL30 MCS 21 to 24 enabled with
Modulation order 4 only
b
0 b
1
QPSK
Im
Re
10
11
00
01
b
0 b
1b
2b
3
16QAM
Im
Re
0000
1111
Im
Re
64QAM
b
0 b
1b
2b
3 b
4 b
5
QPSK
2 bits/symbol
16QAM
4 bits/symbol
64QAM
6 bits/symbol
UL MCSs
MCS ITBS MCS_index Mod order
0-QPSK 0 0 2
1-QPSK 1 1 2
2-QPSK 2 2 2
3-QPSK 3 3 2
4-QPSK 4 4 2
5-QPSK 5 5 2
6-QPSK 6 6 2
7-QPSK 7 7 2
8-QPSK 8 8 2
9-QPSK 9 9 2
10-16QAM 10 10 4
11-16QAM 10 11 4
12-16QAM 11 12 4
13-16QAM 12 13 4
14-16QAM 13 14 4
15-16QAM 14 15 4
16-16QAM 15 16 4
17-16QAM 16 17 6
18-16QAM 17 18 6
19-16QAM 18 19 6
20-16QAM 19 20 6
21-64QAM 19 21 6
22-64QAM 20 22 6
23-64QAM 21 23 6
24-64QAM 22 24 6
Inner loop link adaptation can be interrupted by outer loop
link adaptation
eNodeB
high MCS
coding
lower MCS
more convolution/retransmissions
Link
adaptation
OLLA based on
actual BLER/MCS
Low SINR
High BLER
High SINR
Low BLER
Outer loop link adaptation based mainly
on retransmission ACK/NACK & BLER
counts
Inner loop link adaptation
adjust UE service close to
BLER target
BLER
target
BLER = f (SINR)
Actual
BLER
Actual
BLER
increase
M 8005 BLER measurements &
MCS upgrades / downgrades
BLER
target
Outer Loop Link Adaptation (UL)
link adaptation
eNodeB
high MCS
coding
lower MCS
more convolution/retransmissions
Link
adaptation
OLLA based on
actual BLER/MCS
Low SINR
High BLER
High SINR
Low BLER
Outer loop link adaptation based mainly
on retransmission ACK/NACK & BLER
counts
Inner loop link adaptation
adjust UE service close to
BLER target
BLER
target
BLER = f (SINR)
Actual
BLER
Actual
BLER
increase
M 8005 BLER measurements &
MCS upgrades / downgrades
BLER
target
Outer Loop Link Adaptation (UL)
Link Adaptation Measurements (UL)
•MCS usage
-M8001C16..C44: Histogram for number of PUSCH transmissions with MCS0… MCS28
-M8001C74..C102: Histogram for number of not acknowledged PUSCH transmissions with MCS0..MCS28
-M8001C177..C197, 485..488: Histogram for discarded PUSCH transmissions with MCS0..MCS28 due to
maximum number of retransmissions
-M8001C435..459: First transmissions on PUSCH using MCS0.. MCS24
-M8001C460..484: First transmission NACKs on PUSCH using MCS0..MCS24
M8001C16..C44
Total
transmission
M8001C74. . C102
Transmission with
NACK
M8001C177..C197 and
485 ..488
Discarded
transmission
Total counts
for PUSCH allocation
# of MCS
counts
Negative counts for
PUSCH (non-actual
allocation)
Negative counts for
PUSCH non-allocation
Expired maximum
retransmissions cycles
M8001C435 ..
C459
First
transmission
M8001C74. . C102
First transmission
With NACK
•MCS usage
-M8001C16..C44: Histogram for number of PUSCH transmissions with MCS0… MCS28
-M8001C74..C102: Histogram for number of not acknowledged PUSCH transmissions with MCS0..MCS28
-M8001C177..C197, 485..488: Histogram for discarded PUSCH transmissions with MCS0..MCS28 due to
maximum number of retransmissions
-M8001C435..459: First transmissions on PUSCH using MCS0.. MCS24
-M8001C460..484: First transmission NACKs on PUSCH using MCS0..MCS24
M8001C16..C44
Total
transmission
M8001C74. . C102
Transmission with
NACK
M8001C177..C197 and
485 ..488
Discarded
transmission
Total counts
for PUSCH allocation
# of MCS
counts
Negative counts for
PUSCH (non-actual
allocation)
Negative counts for
PUSCH non-allocation
Expired maximum
retransmissions cycles
M8001C435 ..
C459
First
transmission
M8001C74. . C102
First transmission
With NACK
BLER Statistics (1/4)
Note: QPSK BLER (MCS0..10) and 16QAM BLER (MCS11..24).
Formula: Total PUSCH BLER : [sum(M8001C16..C40) / sum(M8001C74..C98)] *100
BLER related Counters (M8001)
Counter Name Expected Value Test Value
Sum [PUSCH_TRANS_USING_MCS0...MCS24 (C74-C98)] High value 902989
Sum [PUSCH_TRANS_NACK_MCS0...MCS24 (C16-C40)] Low value 335
Total PUSCH BLER = (335/902989) *100 = 0.037 %
Note: QPSK BLER (MCS0..10) and 16QAM BLER (MCS11..24).
Formula: Total PUSCH BLER : [sum(M8001C16..C40) / sum(M8001C74..C98)] *100
BLER related Counters (M8001)
Counter Name Expected Value Test Value
Sum [PUSCH_TRANS_USING_MCS0...MCS24 (C74-C98)] High value 902989
Sum [PUSCH_TRANS_NACK_MCS0...MCS24 (C16-C40)] Low value 335
Total PUSCH BLER = (335/902989) *100 = 0.037 %
BLER Statistics (2/4)
BLER related Counters (M8001)
Counter Name Expected Value Test Value
PUSCH_TRANS_USING_MCS0 0 0
PUSCH_TRANS_USING_MCS1 0 0
PUSCH_TRANS_USING_MCS2 0 0
PUSCH_TRANS_USING_MCS3 0 0
PUSCH_TRANS_USING_MCS4 0 0
PUSCH_TRANS_USING_MCS5 0 25
PUSCH_TRANS_USING_MCS6 0 0
PUSCH_TRANS_USING_MCS7 0 0
PUSCH_TRANS_USING_MCS8 0 0
PUSCH_TRANS_USING_MCS9 0 0
PUSCH_TRANS_USING_MCS10 0 0
PUSCH_TRANS_USING_MCS11 0 0
BLER related Counters (M8001)
Counter Name Expected Value Test Value
PUSCH_TRANS_USING_MCS12 0 0
PUSCH_TRANS_USING_MCS13 0 0
PUSCH_TRANS_USING_MCS14 0 0
PUSCH_TRANS_USING_MCS15 0 0
PUSCH_TRANS_USING_MCS16 0 0
PUSCH_TRANS_USING_MCS17 0 0
PUSCH_TRANS_USING_MCS18 0 0
PUSCH_TRANS_USING_MCS19 0 0
PUSCH_TRANS_USING_MCS20 0 0
PUSCH_TRANS_USING_MCS21 0 0
PUSCH_TRANS_USING_MCS22 0 105
PUSCH_TRANS_USING_MCS23 0 844
PUSCH_TRANS_USING_MCS24 High Value 902015
BLER related Counters (M8001)
Counter Name Expected Value Test Value
PUSCH_TRANS_USING_MCS0 0 0
PUSCH_TRANS_USING_MCS1 0 0
PUSCH_TRANS_USING_MCS2 0 0
PUSCH_TRANS_USING_MCS3 0 0
PUSCH_TRANS_USING_MCS4 0 0
PUSCH_TRANS_USING_MCS5 0 25
PUSCH_TRANS_USING_MCS6 0 0
PUSCH_TRANS_USING_MCS7 0 0
PUSCH_TRANS_USING_MCS8 0 0
PUSCH_TRANS_USING_MCS9 0 0
PUSCH_TRANS_USING_MCS10 0 0
PUSCH_TRANS_USING_MCS11 0 0
BLER related Counters (M8001)
Counter Name Expected Value Test Value
PUSCH_TRANS_USING_MCS12 0 0
PUSCH_TRANS_USING_MCS13 0 0
PUSCH_TRANS_USING_MCS14 0 0
PUSCH_TRANS_USING_MCS15 0 0
PUSCH_TRANS_USING_MCS16 0 0
PUSCH_TRANS_USING_MCS17 0 0
PUSCH_TRANS_USING_MCS18 0 0
PUSCH_TRANS_USING_MCS19 0 0
PUSCH_TRANS_USING_MCS20 0 0
PUSCH_TRANS_USING_MCS21 0 0
PUSCH_TRANS_USING_MCS22 0 105
PUSCH_TRANS_USING_MCS23 0 844
PUSCH_TRANS_USING_MCS24 High Value 902015
BLER Statistics (3/4)
BLER related Counters (M8001)
Counter Name Expected Value Test Value
PUSCH_TRANS_NACK_MCS0 0 0
PUSCH_TRANS_NACK_MCS1 0 0
PUSCH_TRANS_NACK_MCS2 0 0
PUSCH_TRANS_NACK_MCS3 0 0
PUSCH_TRANS_NACK_MCS4 0 0
PUSCH_TRANS_NACK_MCS5 0 0
PUSCH_TRANS_NACK_MCS6 0 0
PUSCH_TRANS_NACK_MCS7 0 0
PUSCH_TRANS_NACK_MCS8 0 0
PUSCH_TRANS_NACK_MCS9 0 0
PUSCH_TRANS_NACK_MCS10 0 0
PUSCH_TRANS_NACK_MCS11 0 0
BLER related Counters (M8001)
Counter Name Expected Value Test Value
PUSCH_TRANS_NACK_MCS12 0 0
PUSCH_TRANS_NACK_MCS13 0 0
PUSCH_TRANS_NACK_MCS14 0 0
PUSCH_TRANS_NACK_MCS15 0 0
PUSCH_TRANS_NACK_MCS16 0 0
PUSCH_TRANS_NACK_MCS17 0 0
PUSCH_TRANS_NACK_MCS18 0 0
PUSCH_TRANS_NACK_MCS19 0 0
PUSCH_TRANS_NACK_MCS20 0 0
PUSCH_TRANS_NACK_MCS21 0 0
PUSCH_TRANS_NACK_MCS22 0 0
PUSCH_TRANS_NACK_MCS23 0 0
PUSCH_TRANS_NACK_MCS24 0 335
BLER related Counters (M8001)
Counter Name Expected Value Test Value
PUSCH_TRANS_NACK_MCS0 0 0
PUSCH_TRANS_NACK_MCS1 0 0
PUSCH_TRANS_NACK_MCS2 0 0
PUSCH_TRANS_NACK_MCS3 0 0
PUSCH_TRANS_NACK_MCS4 0 0
PUSCH_TRANS_NACK_MCS5 0 0
PUSCH_TRANS_NACK_MCS6 0 0
PUSCH_TRANS_NACK_MCS7 0 0
PUSCH_TRANS_NACK_MCS8 0 0
PUSCH_TRANS_NACK_MCS9 0 0
PUSCH_TRANS_NACK_MCS10 0 0
PUSCH_TRANS_NACK_MCS11 0 0
BLER related Counters (M8001)
Counter Name Expected Value Test Value
PUSCH_TRANS_NACK_MCS12 0 0
PUSCH_TRANS_NACK_MCS13 0 0
PUSCH_TRANS_NACK_MCS14 0 0
PUSCH_TRANS_NACK_MCS15 0 0
PUSCH_TRANS_NACK_MCS16 0 0
PUSCH_TRANS_NACK_MCS17 0 0
PUSCH_TRANS_NACK_MCS18 0 0
PUSCH_TRANS_NACK_MCS19 0 0
PUSCH_TRANS_NACK_MCS20 0 0
PUSCH_TRANS_NACK_MCS21 0 0
PUSCH_TRANS_NACK_MCS22 0 0
PUSCH_TRANS_NACK_MCS23 0 0
PUSCH_TRANS_NACK_MCS24 0 335
Link Adaptation Measurements for UL
•Performance on RLC level
•If layer 1 re-transmission fails, packets will be affected on higher protocol level
-M8001C142: Total number of received RLC packets on UL
-M8001C143: Number of received duplicate (= retransmitted) packets on UL
-M8001C145: Number of discarded RLC packets on UL
Total RLC
packets
Retransmitted
RLC packets
Discarded RLC
packets
# of MCS
Counts M8001
Counter:
M8001C142 Counter:
M8001C143
Counter:
M8001C145
•Performance on RLC level
•If layer 1 re-transmission fails, packets will be affected on higher protocol level
-M8001C142: Total number of received RLC packets on UL
-M8001C143: Number of received duplicate (= retransmitted) packets on UL
-M8001C145: Number of discarded RLC packets on UL
Total RLC
packets
Retransmitted
RLC packets
Discarded RLC
packets
# of MCS
Counts M8001
Counter:
M8001C142 Counter:
M8001C143
Counter:
M8001C145
UL RLC PDU ReTrR =
(number of received duplicated RLC PDUs) /
(number all received RLC PDUs)
Sum ([M8001C143]) / sum
([M8001C142]) * 100
Sum ([RLC_PDU_RE_TRANS]) / sum
([RLC_PDU_FIRST_TRANS] +
[RLC_PDU_RE_TRANS]) * 100
E-UTRAN RLC PDU Re-transmission Ratio Uplink
Shows the retransmission ratio for RLC PDUs in uplink direction.
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
Link Adaptation KPIs for UL
(number of received duplicated RLC PDUs) /
(number all received RLC PDUs)
Sum ([M8001C143]) / sum
([M8001C142]) * 100
Sum ([RLC_PDU_RE_TRANS]) / sum
([RLC_PDU_FIRST_TRANS] +
[RLC_PDU_RE_TRANS]) * 100
E-UTRAN RLC PDU Re-transmission Ratio Uplink
Shows the retransmission ratio for RLC PDUs in uplink direction.
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
Link Adaptation KPIs for UL
•Capacity areas
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
Power Headroom Reporting
UL PwRfor service
must increase due to
high path loss!
PwR loss
M 8005 PwR
headroom
measurements
1.st counter
of power
headroom
PwR
(dBm)
-23..-21 dB
power
headroom
Last counter of
power
headroom
> 39 dB
power
headroom
Service
Service
Head room counter conception M8005 C54 … C85cell
cell
cell
MME MME
M 8005 PwRheadroom
UE reports to NW periodically
Event based trigger in
case of: DL Path loss
change is bigger than a
defined threshold,
reported by UE to
eNodeB
Max Path loss
The decisionabout ATB is based on
power headroom reports of the UE
UL PwRfor service
must increase due to
high path loss!
PwR loss
M 8005 PwR
headroom
measurements
1.st counter
of power
headroom
PwR
(dBm)
-23..-21 dB
power
headroom
Last counter of
power
headroom
> 39 dB
power
headroom
Service
Service
Head room counter conception M8005 C54 … C85cell
cell
cell
MME MME
M 8005 PwRheadroom
UE reports to NW periodically
Event based trigger in
case of: DL Path loss
change is bigger than a
defined threshold,
reported by UE to
eNodeB
Max Path loss
The decisionabout ATB is based on
power headroom reports of the UE
Power Headroom Measurements
•Measurements for PUSCH
-M8005C87, C88, C89: Minimum/maximum/mean power headroom
-M8005C54..C85: power headroom histogramcell
cell
cell
MME MME
M 8005 PwRheadroom
-
23 to
-
21 dB
Power headroom values
Min
Mean
Max
-
21 to
-
19dB
37 to 39 dB-
17 to
-
15dB
-
19 to
-
17 dB
35 to 37dB >39dB
………….. dBifiPLjPiMPiPH )()()())((log10)(
TFO_PUSCHPUSCH10CMAX
•Measurements for PUSCH
-M8005C87, C88, C89: Minimum/maximum/mean power headroom
-M8005C54..C85: power headroom histogramcell
cell
cell
MME MME
M 8005 PwRheadroom
-
23 to
-
21 dB
Power headroom values
Min
Mean
Max
-
21 to
-
19dB
37 to 39 dB-
17 to
-
15dB
-
19 to
-
17 dB
35 to 37dB >39dB
………….. dBifiPLjPiMPiPH )()()())((log10)(
TFO_PUSCHPUSCH10CMAX
•Capacity areas
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
E-ULA, LTE1034 Extended Uplink Link Adaptation
Eliminate any possibility of BLER target drifting by:
•stopping the SLOW AMC algorithm(ILLA)
•leaving the MCS regulation the OLLA algorithm
OLLA reactsrelatively fast when it comes to reduce MCS
index and slowly enough when it comes to upgrade MCS
index
Therefore OLLA algorithm is unchanged and become the
only one ruling the MCS index up and down
ATB is no longer PHR based but BLER based (with PHR
correction).
It will become active only when the OLLA has already
reached the lower possible limit for the MCSindex
Most of all SlowATB is coordinated with OLLA.
This means that SlowATB acts only when OLLA has no
longer margin left in term of reaction.
The main idea
With LTE1034 the 3 processes (UL AMC, UL ATB and UL OLLA) that rule the UL Link Adaptation,
work synchronized but independently to each other.
AMC
OLLA
Slow
ATB
Eliminate any possibility of BLER target drifting by:
•stopping the SLOW AMC algorithm(ILLA)
•leaving the MCS regulation the OLLA algorithm
OLLA reactsrelatively fast when it comes to reduce MCS
index and slowly enough when it comes to upgrade MCS
index
Therefore OLLA algorithm is unchanged and become the
only one ruling the MCS index up and down
ATB is no longer PHR based but BLER based (with PHR
correction).
It will become active only when the OLLA has already
reached the lower possible limit for the MCSindex
Most of all SlowATB is coordinated with OLLA.
This means that SlowATB acts only when OLLA has no
longer margin left in term of reaction.
The main idea
With LTE1034 the 3 processes (UL AMC, UL ATB and UL OLLA) that rule the UL Link Adaptation,
work synchronized but independently to each other.
AMC
OLLA
Slow
ATB
LTE1495 –Fast Uplink Adaptation (F-ULA)
Link Adaptation intro
Link Adaptation:
•improves system capacity, peak data rate and coverage
reliability, adapting (MCS, PRB) to the radio channel conditions.
-good radio conditions → high SINR → high MCS
-bad radio conditions → low SINR → low MCS / #PRBs
•Uplink Link Adaptation consist of AMCand ATB
-UL AMC selects appropriate MCSfor UL transmission taking actual transmission reliability
(BLER).
-UL ATB responsible for defining maximum number of PRBsthat can be assigned to a
particular UE by UL SCH
(UEs in power limitation will assign reduced number of PRBs)
Link Adaptation intro
Link Adaptation:
•improves system capacity, peak data rate and coverage
reliability, adapting (MCS, PRB) to the radio channel conditions.
-good radio conditions → high SINR → high MCS
-bad radio conditions → low SINR → low MCS / #PRBs
•Uplink Link Adaptation consist of AMCand ATB
-UL AMC selects appropriate MCSfor UL transmission taking actual transmission reliability
(BLER).
-UL ATB responsible for defining maximum number of PRBsthat can be assigned to a
particular UE by UL SCH
(UEs in power limitation will assign reduced number of PRBs)
LTE1495 –Fast Uplink Adaptation (F-ULA)
Link AdaptationULLA E-ULA F-ULA
AMC
ILLA
Slow AMC Not used with E-ULA Fast AMC
OLLA
OLLA OLLA unchanged Modified OLLA
ATB
SlowATB
-PHR based
NewATB
-PHR and BLER based
ModifiedATB
Parameter
activation
LNCEL:ulamcEnable = True
LNCEL:ulatbEnable = True
LNCEL:actUlLnkAdp= eUlLa LNCEL:actUlLnkAdp= fUlLa
Comment
OLLA and ATB synchronizationF-AMC core integrates all
functional blocks
Evolution of Link Adaptation:
Link AdaptationULLA E-ULA F-ULA
AMC
ILLA
Slow AMC Not used with E-ULA Fast AMC
OLLA
OLLA OLLA unchanged Modified OLLA
ATB
SlowATB
-PHR based
NewATB
-PHR and BLER based
ModifiedATB
Parameter
activation
LNCEL:ulamcEnable = True
LNCEL:ulatbEnable = True
LNCEL:actUlLnkAdp= eUlLa LNCEL:actUlLnkAdp= fUlLa
Comment
OLLA and ATB synchronizationF-AMC core integrates all
functional blocks
Evolution of Link Adaptation:
Related Counters
Feature impact How to measure
UL Throughput (cell and UE level)
The most obvious and desirable would be to observe the UL
throughput increase on UE and cell level. However, network
could be lightly loaded and no increase would be seen due to
not enough offered load.
In any case, UL throughputimprovement can be observed by
means of the drive test.
KPIs:
-Average PDCP Layer Active Cell Throughput UL(LTE_5289d)
-Average RLC Layer Cell Throughput UL(LTE_5283b)
-LTE_5359a-LTE_5367aAveraged IP scheduled Throughput in UL, (QCI1 –QCI9)
Counters:
PDCP_DATA_RATE_MEAN_UL(M8012C23)
RLC_PDU_VOL_RECEIVED(M8012C17)
IP_TPUT_VOL_{UL/DL}_QCI_{1-9}
IP_TPUT_TIME_{UL/DL}_QCI_{1-9}(M8012C91-M8012C134)
FUG / EDG events
Number of Fast Upgrade (FUG) and Emergency Downgrade
(EDG) events should be reduced for F-ULA thanks to better
matchingappropriate MCS index.
Percentage of FUG / EDG should remain similar with and
without F-ULA.
KPIs:
-% of UL AMC Upgrades (LTE_595a)
-% of UL AMC Downgrades (LTE_596a)
Counters:
UL_AMC_UPGRADE(M8005C140)
UL_AMC_DOWNGRADE(M8005C141)
Feature impact How to measure
UL Throughput (cell and UE level)
The most obvious and desirable would be to observe the UL
throughput increase on UE and cell level. However, network
could be lightly loaded and no increase would be seen due to
not enough offered load.
In any case, UL throughputimprovement can be observed by
means of the drive test.
KPIs:
-Average PDCP Layer Active Cell Throughput UL(LTE_5289d)
-Average RLC Layer Cell Throughput UL(LTE_5283b)
-LTE_5359a-LTE_5367aAveraged IP scheduled Throughput in UL, (QCI1 –QCI9)
Counters:
PDCP_DATA_RATE_MEAN_UL(M8012C23)
RLC_PDU_VOL_RECEIVED(M8012C17)
IP_TPUT_VOL_{UL/DL}_QCI_{1-9}
IP_TPUT_TIME_{UL/DL}_QCI_{1-9}(M8012C91-M8012C134)
FUG / EDG events
Number of Fast Upgrade (FUG) and Emergency Downgrade
(EDG) events should be reduced for F-ULA thanks to better
matchingappropriate MCS index.
Percentage of FUG / EDG should remain similar with and
without F-ULA.
KPIs:
-% of UL AMC Upgrades (LTE_595a)
-% of UL AMC Downgrades (LTE_596a)
Counters:
UL_AMC_UPGRADE(M8005C140)
UL_AMC_DOWNGRADE(M8005C141)
Related Counters
Feature impact How to measure
Call Drop Rate
Lower call drop rate is expected under impaired RF conditions.
Assuming that higherMCS can be used for F-ULA than E-ULA then lower
number of PRB can be used for VoIP package. Thus more UEs can be
scheduled in one TTI that’s why lower VoIP packet delay will be
perceived. Less number of dropped packets (due to exceeded delay
target) should improve call drop rate statistic.
KPIs:
-E-UTRAN Radio Bearer Drop Ratio (LTE_5004a)
-E-UTRANE-RAB Drop Ratio, RAN View(LTE_5025b)
-E-UTRAN E-RAB Drop Ratio, User Perspective (LTE_5119a)
Counters:
RB_REL_REQ_RNL(M8007C5)
RB_REL_REQ_OTHER(M8007C6)
ENB_EPS_BEARER_REL_REQ_RNL(M8006C12)
ENB_EPS_BEARER_REL_REQ_OTH(M8006C13)
EPC_EPS_BEARER_REL_REQ_RNL(M8006C8)
EPC_EPS_BEARER_REL_REQ_OTH(M8006C9)
Feature impact How to measure
Call Drop Rate
Lower call drop rate is expected under impaired RF conditions.
Assuming that higherMCS can be used for F-ULA than E-ULA then lower
number of PRB can be used for VoIP package. Thus more UEs can be
scheduled in one TTI that’s why lower VoIP packet delay will be
perceived. Less number of dropped packets (due to exceeded delay
target) should improve call drop rate statistic.
KPIs:
-E-UTRAN Radio Bearer Drop Ratio (LTE_5004a)
-E-UTRANE-RAB Drop Ratio, RAN View(LTE_5025b)
-E-UTRAN E-RAB Drop Ratio, User Perspective (LTE_5119a)
Counters:
RB_REL_REQ_RNL(M8007C5)
RB_REL_REQ_OTHER(M8007C6)
ENB_EPS_BEARER_REL_REQ_RNL(M8006C12)
ENB_EPS_BEARER_REL_REQ_OTH(M8006C13)
EPC_EPS_BEARER_REL_REQ_RNL(M8006C8)
EPC_EPS_BEARER_REL_REQ_OTH(M8006C9)
•Capacity areas
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
DL Scheduling
•Finally allocate UEs (bearers) onto PRB, considering only the PRBs
available after the previous steps
•Pre-Scheduling:All UEs with data available for transmission based on
the buffer fill levels
•Time Domain Scheduling:Parameter maxNumUeDldecides how many
UEs are allocated in the TTI being scheduled
•Frequency Domain Schedulingfor candidate set 2 UEs: Resource
allocation in frequency domain including number and location of
allocated PRBsPre-Scheduling:
Select UEs eligible for scheduling
-> Determination of Candidate Set 1
Time domain scheduling
of UEs according to simple criteria
-> Determination of Candidate Set 2
Start
End
Frequency domain scheduling
of UEs/bearers
-> PRB/RBG allocation to UEs/bearers
•Finally allocate UEs (bearers) onto PRB, considering only the PRBs
available after the previous steps
•Pre-Scheduling:All UEs with data available for transmission based on
the buffer fill levels
•Time Domain Scheduling:Parameter maxNumUeDldecides how many
UEs are allocated in the TTI being scheduled
•Frequency Domain Schedulingfor candidate set 2 UEs: Resource
allocation in frequency domain including number and location of
allocated PRBsPre-Scheduling:
Select UEs eligible for scheduling
-> Determination of Candidate Set 1
Time domain scheduling
of UEs according to simple criteria
-> Determination of Candidate Set 2
Start
End
Frequency domain scheduling
of UEs/bearers
-> PRB/RBG allocation to UEs/bearers
Measurements Related to DL Scheduling
•Physical resource block utilization (= air interface load)
-M8011C35/C36/C37: Minimum/ maximum/mean % of occupied PRBs per TTI
-Mean value stored at 10x greater i.e. no decimal point, example: 5.4 stored as 54
-M8011C25..C34: Histogram for % of occupied PRBs per TTI
The histograms work as follows
1.st counter: Number of measurements with utilization < 10%
2.nd counter: Number of measurements with utilization between 10..20%
Continue with steps of 10%
Last counter: Number of measurements with utilization > 90%
<10% utilisation
% occupied PRB / TTI Min
Mean
Max
10% to 20% utilisation 80% to 90% utilisation30% to 40% utilisation 20% to 30% utilisation 70% to 80% utilisation 50% to 60% utilisation 60% to 70% utilisation 40% to 50% utilisation 90% to 100% utilisation
•Physical resource block utilization (= air interface load)
-M8011C35/C36/C37: Minimum/ maximum/mean % of occupied PRBs per TTI
-Mean value stored at 10x greater i.e. no decimal point, example: 5.4 stored as 54
-M8011C25..C34: Histogram for % of occupied PRBs per TTI
The histograms work as follows
1.st counter: Number of measurements with utilization < 10%
2.nd counter: Number of measurements with utilization between 10..20%
Continue with steps of 10%
Last counter: Number of measurements with utilization > 90%
<10% utilisation
% occupied PRB / TTI Min
Mean
Max
10% to 20% utilisation 80% to 90% utilisation30% to 40% utilisation 20% to 30% utilisation 70% to 80% utilisation 50% to 60% utilisation 60% to 70% utilisation 40% to 50% utilisation 90% to 100% utilisation
AVG DL PRBs = (average DL PRBs per TTI) Avg ([M8011C37])/10 Avg ([DL_PRB_UTIL_TTI_MEAN])/10
LTE_5276b E-UTRAN average PRB usage per TTI DL
Shows the average value of the Physical Resource Block utilization per TTI in DL direction
The utilization is defined by the ratio of used to available PRBs per TTI
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
KPIs Related to DL Scheduling
-Mean value stored at 10x greater i.e. no decimal point, example: 5.4 stored as 54
LTE_5276b E-UTRAN average PRB usage per TTI DL
Shows the average value of the Physical Resource Block utilization per TTI in DL direction
The utilization is defined by the ratio of used to available PRBs per TTI
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
KPIs Related to DL Scheduling
-Mean value stored at 10x greater i.e. no decimal point, example: 5.4 stored as 54
UL Scheduling
•In UL only contiguous allocation of PRBs to a UE
possible
•Channel unaware frequency scheduling Random
allocation of PRBs to Ues.
•Interference aware scheduler allocates cell edge UE’s to
PRB regions with low noise and interference.
•Channel aware frequency scheduling uses SRS.Frequency
Time
PRB
UE1
UE2
UE3
UE4
UE5
TTI
UE3
UE5
UE1
UE2
UE3
UE5
UE4
UE1
UE2
UE2
UE1
UE1
UE5
UE3
UE4
UE2
UE3
UE5
UE4
UE4
UE5
UE1
UE2
UE3
UE4
DOWNLINK
UE1
UE2
SINR
UPLINK
UE1
UE2
SINR
•In UL only contiguous allocation of PRBs to a UE
possible
•Channel unaware frequency scheduling Random
allocation of PRBs to Ues.
•Interference aware scheduler allocates cell edge UE’s to
PRB regions with low noise and interference.
•Channel aware frequency scheduling uses SRS.Frequency
Time
PRB
UE1
UE2
UE3
UE4
UE5
TTI
UE3
UE5
UE1
UE2
UE3
UE5
UE4
UE1
UE2
UE2
UE1
UE1
UE5
UE3
UE4
UE2
UE3
UE5
UE4
UE4
UE5
UE1
UE2
UE3
UE4
DOWNLINK
UE1
UE2
SINR
UPLINK
UE1
UE2
SINR
Measurements Related to UL Scheduling
•Physical resource block utilization (= air interface load)
-M8011C22/C23/C24: Minimum/maximum/mean % of occupied PRBs per TTI
-Mean value stored at 10x greater i.e. no decimal point, example: 5.4 stored as 54
-M8011C12..C21: Histogram for % of occupied PRBs per TTI
-The histograms work as follows
1.st counter: Number of measurements with utilization < 10%
2.nd counter: Number of measurements with utilization between 10..20%
Continue with steps of 10%
Last counter: Number of measurements with utilization > 90%
<10% utilisation
% occupied PRB / TTI Min
Mean
Max
10% to 20% utilisation 80% to 90% utilisation30% to 40% utilisation 20% to 30% utilisation 70% to 80% utilisation 50% to 60% utilisation 60% to 70% utilisation 40% to 50% utilisation 90% to 100% utilisation
•Physical resource block utilization (= air interface load)
-M8011C22/C23/C24: Minimum/maximum/mean % of occupied PRBs per TTI
-Mean value stored at 10x greater i.e. no decimal point, example: 5.4 stored as 54
-M8011C12..C21: Histogram for % of occupied PRBs per TTI
-The histograms work as follows
1.st counter: Number of measurements with utilization < 10%
2.nd counter: Number of measurements with utilization between 10..20%
Continue with steps of 10%
Last counter: Number of measurements with utilization > 90%
<10% utilisation
% occupied PRB / TTI Min
Mean
Max
10% to 20% utilisation 80% to 90% utilisation30% to 40% utilisation 20% to 30% utilisation 70% to 80% utilisation 50% to 60% utilisation 60% to 70% utilisation 40% to 50% utilisation 90% to 100% utilisation
AVG UL PRBs = (average UL PRBs per TTI) Avg ([M8011C24])/10 Avg ([UL_PRB_UTIL_TTI_MEAN])/10
LTE_5273b E-UTRAN average PRB usage per TTI UL
Shows the average value of the Physical Resource Block utilization per TTI in UL direction
The utilization is defined by the ratio of used to available PRBs per TTI
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
-Mean value stored at 10x greater i.e. no decimal point, example: 5.4 stored as 54
KPIs Related to UL Scheduling
LTE_5273b E-UTRAN average PRB usage per TTI UL
Shows the average value of the Physical Resource Block utilization per TTI in UL direction
The utilization is defined by the ratio of used to available PRBs per TTI
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
-Mean value stored at 10x greater i.e. no decimal point, example: 5.4 stored as 54
KPIs Related to UL Scheduling
E-UTRAN average PRB usage per TTI
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
23.05.2011 25.05.2011 27.05.2011 29.05.2011 31.05.2011 02.06.2011 04.06.2011 06.06.2011 09.06.2011 11.06.2011 13.06.2011 15.06.2011 17.06.2011 19.06.2011 21.06.2011
LTE_5273a Average PRB usage per TTI Uplink (%)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
23.05.2011 25.05.2011 27.05.2011 29.05.2011 31.05.2011 02.06.2011 04.06.2011 06.06.2011 09.06.2011 11.06.2011 13.06.2011 15.06.2011 17.06.2011 19.06.2011 21.06.2011
LTE_5273a Average PRB usage per TTI Uplink (%)
•Capacity areas
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
Two code words (S1+S2) are transmitted
in parallel to 1 UE double peak rate
S1
S2
Layer
Mapping
L1
L2
Pre-coding
Map onto
Resource
Elements
×
Map onto
Resource
Elements
OFDMA
OFDMA
Modulation
Modulation
Code word 1
Code word 2
×
Scale
×
×
W
2
W
1
Benefit: Doubles peak rate compared to 1 Txantenna
•Signal generation is similar to transmit diversity, i.e.
layer mapping and pre-coding
•Can be open loop or closed loop depending whether
the UE provides feedback
•Static spatial multiplexing with 2 code words
•Supported physical channel PDSCH
2x2 MIMO
in parallel to 1 UE double peak rate
S1
S2
Layer
Mapping
L1
L2
Pre-coding
Map onto
Resource
Elements
×
Map onto
Resource
Elements
OFDMA
OFDMA
Modulation
Modulation
Code word 1
Code word 2
×
Scale
×
×
W
2
W
1
Benefit: Doubles peak rate compared to 1 Txantenna
•Signal generation is similar to transmit diversity, i.e.
layer mapping and pre-coding
•Can be open loop or closed loop depending whether
the UE provides feedback
•Static spatial multiplexing with 2 code words
•Supported physical channel PDSCH
2x2 MIMO
Benefit: High peak rates and good cell edge performance
•Dynamic selection between transmit diversity and open
loop spatial multiplexing with 2 code words based on CQI
•If disabled case either static spatial multiplexing or static Tx
diversity can be selected for the whole cell only (i.e. for all
UEs)
•Supported physical channel: PDSCH
2 code words (A+B) are transmitted
in parallel to 1 UE which doubles
the peak rate
1 code word A is transmitted via 2
antennas to 1 UE to improve the
link budget
A
B
A
LiBu: Link Budget
2x2 MIMO (1 Code Word via 2 Antennas)
•Dynamic selection between transmit diversity and open
loop spatial multiplexing with 2 code words based on CQI
•If disabled case either static spatial multiplexing or static Tx
diversity can be selected for the whole cell only (i.e. for all
UEs)
•Supported physical channel: PDSCH
2 code words (A+B) are transmitted
in parallel to 1 UE which doubles
the peak rate
1 code word A is transmitted via 2
antennas to 1 UE to improve the
link budget
A
B
A
LiBu: Link Budget
2x2 MIMO (1 Code Word via 2 Antennas)
Measurements Related to MIMO
•Usage of transmission modes
M8010C55: MIMO Open Loop Diversity Mode
M8010C56: MIMO Open Loop Spatial Multiplexing
M8010C57: MIMO Closed Loop Single Codeword
M8010C58: MIMO Closed Loop Double Codeword
M8010C59: Open Loop MIMO mode switches
M8010C60: Closed Loop MIMO mode switches
SAE GW
MME
eNB
S1 signaling
M 8010
Air interface QoScell
cell
cell
MME MME
M 8010 CQI eNBDL air interface
M 8010 MIMO transmission on air interface
RAN QoS
RAN QoS
•Usage of transmission modes
M8010C55: MIMO Open Loop Diversity Mode
M8010C56: MIMO Open Loop Spatial Multiplexing
M8010C57: MIMO Closed Loop Single Codeword
M8010C58: MIMO Closed Loop Double Codeword
M8010C59: Open Loop MIMO mode switches
M8010C60: Closed Loop MIMO mode switches
SAE GW
MME
eNB
S1 signaling
M 8010
Air interface QoScell
cell
cell
MME MME
M 8010 CQI eNBDL air interface
M 8010 MIMO transmission on air interface
RAN QoS
RAN QoS
LTE1402 Uplink Intra eNBCo-ordinated multi point CoMP)
In general, LTE has frequency reuse of 1. That means a lot of interference on cell edges. In effect, on cell edge
UEs are received with similar power from servingand neighbourcells
•…but not always as a useful signal. To the neighbor cell, this is interference.
•CoMPaims to take this interference and turn it to the useful signal.
•But the main obstacle is to get the data from one cell to the other:
•There is a lot of data to be exchanged between cells
•Delay is crucial
In general, LTE has frequency reuse of 1. That means a lot of interference on cell edges. In effect, on cell edge
UEs are received with similar power from servingand neighbourcells
•…but not always as a useful signal. To the neighbor cell, this is interference.
•CoMPaims to take this interference and turn it to the useful signal.
•But the main obstacle is to get the data from one cell to the other:
•There is a lot of data to be exchanged between cells
•Delay is crucial
LTE1402 Uplink Intra eNBCo-ordinatedmulti point (CoMP)
M8001C198 / Average number of UEs utilizing UL intra-eNBCoMP
M8001C198 / Average number of UEs utilizing UL intra-eNBCoMP
•Capacity areas
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput and availability
•Cell resource Groups
Capacity areas and cell resource measurements
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput and availability
•Cell resource Groups
Capacity areas and cell resource measurements
Overview
•DL semi static power setting
•Fixed power density per PRB scheduled for transport
•Total transmission power is maximum if all PRBs are scheduled
•No adaptive or dynamic power control
•Optional PC on PDCCH (all parameters hardcoded)
•UL slow power control
•Combination of open and closed loop PC
•Open loop PC
•Power calculated by the UE based on path loss measurements
•Closed loop PC
•Based on exchange of feedback data and commands between UE and eNodeB
•Requires SW license enhancement
•DL semi static power setting
•Fixed power density per PRB scheduled for transport
•Total transmission power is maximum if all PRBs are scheduled
•No adaptive or dynamic power control
•Optional PC on PDCCH (all parameters hardcoded)
•UL slow power control
•Combination of open and closed loop PC
•Open loop PC
•Power calculated by the UE based on path loss measurements
•Closed loop PC
•Based on exchange of feedback data and commands between UE and eNodeB
•Requires SW license enhancement
Overview
DL semi static power setting
Objective
•Improve cell edge behavior
•Reduce inter cell interference
•Reduce power consumption....
12 subcarriers
Time
Frequency
0.5 ms slot
1 ms subframe
or TTI
Resource
block
Physical Resource Blocks
Fixed
PwR
per RB
Fixed power density per
Physical RB scheduled
for transport
eNodeB
More PRB
More spectrum
More PwR
PwR
(dBm)
Power
max
is allocated, if all
available RB's are
carried/ scheduled
Fixed
PwR
RB
RB
RB
RB
Less PRB
DL semi static power setting
Objective
•Improve cell edge behavior
•Reduce inter cell interference
•Reduce power consumption....
12 subcarriers
Time
Frequency
0.5 ms slot
1 ms subframe
or TTI
Resource
block
Physical Resource Blocks
Fixed
PwR
per RB
Fixed power density per
Physical RB scheduled
for transport
eNodeB
More PRB
More spectrum
More PwR
PwR
(dBm)
Power
max
is allocated, if all
available RB's are
carried/ scheduled
Fixed
PwR
RB
RB
RB
RB
Less PRB
Overview
UL slow power control
Example: A eNode B
PwR
(dBm)
Max Path loss
Open loop PC:Open loop PC:Power
calculated by the UE based
on path loss measurements
"C1 calculation"
Min sensitivity
Max Path loss
Max UE PwR
needed no
headroom Closed loop PC: Based on exchange of
feedback data and commands between
UE and eNodeB
eNodeB
Example: B
time
PC
PwRcommands dBmifiPLjjPiMPiP )}()()()())((log10, {min)(
TFO_PUSCHPUSCH10CMAXPUSCH
UL slow power control
Example: A eNode B
PwR
(dBm)
Max Path loss
Open loop PC:Open loop PC:Power
calculated by the UE based
on path loss measurements
"C1 calculation"
Min sensitivity
Max Path loss
Max UE PwR
needed no
headroom Closed loop PC: Based on exchange of
feedback data and commands between
UE and eNodeB
eNodeB
Example: B
time
PC
PwRcommands dBmifiPLjjPiMPiP )}()()()())((log10, {min)(
TFO_PUSCHPUSCH10CMAXPUSCH
Total power going into PRBs = pMax-dlCellPerRed
•dMax= maximum output power for all DL channels
•dlCellPwrRed= reduction of maximum output power
•Available power evenly distributed over the PRBs (flat Power Spectral Density)PSD
Frequency
PSD = (Max_TX_Pwr–CELL_PWR_RED) –10*log10( 12*# PRBs)
AllocatedDL PRBs
DL Pilots
PSD
Time
PSD = (Max_TX_Pwr–CELL_PWR_RED) –10*log10( 12*# PRBs)
PDCCH
BCH, SCHPDSCH, PCH
PSD
Frequency
PSD = (Max_TX_Pwr–CELL_PWR_RED) –10*log10( 12*# PRBs)
AllocatedDL PRBs
DL Pilots
PSD
Time
PSD = (Max_TX_Pwr–CELL_PWR_RED) –10*log10( 12*# PRBs)
PDCCH
BCH, SCHPDSCH, PCH
pMax
LNCEL,
5/8/10/15/20/30/40/60W, -
dlCellPwrRed
LNCEL, 0..10 dB with step of 0.1 dB, 0 dB
Number of OFDM carriers
= power per OFDM carrier
DL Static Power Setting
•dMax= maximum output power for all DL channels
•dlCellPwrRed= reduction of maximum output power
•Available power evenly distributed over the PRBs (flat Power Spectral Density)PSD
Frequency
PSD = (Max_TX_Pwr–CELL_PWR_RED) –10*log10( 12*# PRBs)
AllocatedDL PRBs
DL Pilots
PSD
Time
PSD = (Max_TX_Pwr–CELL_PWR_RED) –10*log10( 12*# PRBs)
PDCCH
BCH, SCHPDSCH, PCH
PSD
Frequency
PSD = (Max_TX_Pwr–CELL_PWR_RED) –10*log10( 12*# PRBs)
AllocatedDL PRBs
DL Pilots
PSD
Time
PSD = (Max_TX_Pwr–CELL_PWR_RED) –10*log10( 12*# PRBs)
PDCCH
BCH, SCHPDSCH, PCH
pMax
LNCEL,
5/8/10/15/20/30/40/60W, -
dlCellPwrRed
LNCEL, 0..10 dB with step of 0.1 dB, 0 dB
Number of OFDM carriers
= power per OFDM carrier
DL Static Power Setting
If Txdiversity or MIMO is applied, less DL power is needed
Total power going into PRBs = pMax–dlCellPerRed-dlPcMimoComp
dlPcMimoComp= coverage gain obtained by Txdiversity or MIMO
Without Tx diversity / MIMO OR
With Tx diversity / MIMO
dlpcMimoComp > 0
With Tx diversity / MIMO
dlpcMimoComp = 0
dlPcMimoComp
LNCEL, 0..10 dB with step of 0.01 dB, 0 dB
DL Static Power Setting
Total power going into PRBs = pMax–dlCellPerRed-dlPcMimoComp
dlPcMimoComp= coverage gain obtained by Txdiversity or MIMO
Without Tx diversity / MIMO OR
With Tx diversity / MIMO
dlpcMimoComp > 0
With Tx diversity / MIMO
dlpcMimoComp = 0
dlPcMimoComp
LNCEL, 0..10 dB with step of 0.01 dB, 0 dB
DL Static Power Setting
UL Power Control (Overview)
Control of Power Spectral Density
•Power control does not control absolute UE power, but the Power Spectral Density (PSD)
•PSDs at eNodeBfrom different users have to be close to each other so the receiver doesn’t
work over a large range of powers
•Different data rates mean different bandwidths so that the absolute power of the UE will
also change. PC keeps PSD constant independently of the bandwidth
Control of Power Spectral Density
•Power control does not control absolute UE power, but the Power Spectral Density (PSD)
•PSDs at eNodeBfrom different users have to be close to each other so the receiver doesn’t
work over a large range of powers
•Different data rates mean different bandwidths so that the absolute power of the UE will
also change. PC keeps PSD constant independently of the bandwidth
UL Power Control (Open and Closed Loop)
•UE controls power to keep the transmitted power spectral density (PSD) constant independent of the
allocated bandwidth
•If no feedback from eNodeB(in PDCCH UL PC command) the UE performs open loop PC based on DL path
loss measurements
•If feedback from eNodeBthe UE corrects the PSD (when receiving in PDCCH PC commands)
•PC commands (up and down) are based on UL quality (SINR) and signal level (RSSI) measurements
•Applied separately for PUSCH and PUCCH
•Scope of UL PC is UE level (performed separately for each UL in a cell)1) Initial TX power level
2) SINR measurment
3) Setting new power offset
4) TX power level
adjustment with the new
offset
•UE controls power to keep the transmitted power spectral density (PSD) constant independent of the
allocated bandwidth
•If no feedback from eNodeB(in PDCCH UL PC command) the UE performs open loop PC based on DL path
loss measurements
•If feedback from eNodeBthe UE corrects the PSD (when receiving in PDCCH PC commands)
•PC commands (up and down) are based on UL quality (SINR) and signal level (RSSI) measurements
•Applied separately for PUSCH and PUCCH
•Scope of UL PC is UE level (performed separately for each UL in a cell)1) Initial TX power level
2) SINR measurment
3) Setting new power offset
4) TX power level
adjustment with the new
offset
UL Power and Quality Measurements
•SINR measurements
-M8005C90/C91/C92: Min/Max/Mean SINR on PUCCH
-M8005C93/C94/C95: Min/Max/Mean SINR on PUSCH
-M8005C96..C117: SINR histogram for PUCCH
-M8005C118..C139: SINR histogram for PUSCH
-The histograms work as follows
1.st counter: Number of measurements with SINR < -10 dB
2.nd counter: Number of measurements with SINR from -10 to -8 dB
3.rd counter: Number of measurements with SINR from -8 to -6 dB
Continue with steps of 2 dB
Last counter: Number of measurements with SINR > 30 dB
SINR <10dB -
10 dB < SINR <
-
8 dB
28dB < SINR < 30 dB-
6dB < SINR <
-
4dB
-
8dB < SINR <
-
6dB
SNR > 30dB
SINR on PUSCH/PUCCH
Min
Mean
Max
•SINR measurements
-M8005C90/C91/C92: Min/Max/Mean SINR on PUCCH
-M8005C93/C94/C95: Min/Max/Mean SINR on PUSCH
-M8005C96..C117: SINR histogram for PUCCH
-M8005C118..C139: SINR histogram for PUSCH
-The histograms work as follows
1.st counter: Number of measurements with SINR < -10 dB
2.nd counter: Number of measurements with SINR from -10 to -8 dB
3.rd counter: Number of measurements with SINR from -8 to -6 dB
Continue with steps of 2 dB
Last counter: Number of measurements with SINR > 30 dB
SINR <10dB -
10 dB < SINR <
-
8 dB
28dB < SINR < 30 dB-
6dB < SINR <
-
4dB
-
8dB < SINR <
-
6dB
SNR > 30dB
SINR on PUSCH/PUCCH
Min
Mean
Max
UL Power and Quality Measurements
•RSSI measurements
-M8005C0/C1/C2: Min/Max/Mean RSSI on PUCCH
-M8005C3/C4/C5: Min/Max/Mean RSSI on PUSCH
-M8005C6..C27: RSSI histogram for PUCCH
-M8005C28..C49: RSSI histogram for PUSCH
-The histograms work as follows
1.st counter: Number of measurements with RSSI < -120 dBm
2.nd counter: Number of measurements with RSSI from -120 to -118 dBm
3.rd counter: Number of measurements with RSSI from -118 to -116 dBm
Continue with steps of 2 dB
Last counter: Number of measurements with RSSI > -80 dBm
RSSI<120dB -
120 dB < RSSI<
-
118
dB -
82dB< RSSI<
-
80dB-
116dB < RSSI<
-
114dB-
118dB < RSSI<
-
116dB
RSSI>
-
80dB
RSSI on PUSCH/PUCCH
Min
Mean
Max
•RSSI measurements
-M8005C0/C1/C2: Min/Max/Mean RSSI on PUCCH
-M8005C3/C4/C5: Min/Max/Mean RSSI on PUSCH
-M8005C6..C27: RSSI histogram for PUCCH
-M8005C28..C49: RSSI histogram for PUSCH
-The histograms work as follows
1.st counter: Number of measurements with RSSI < -120 dBm
2.nd counter: Number of measurements with RSSI from -120 to -118 dBm
3.rd counter: Number of measurements with RSSI from -118 to -116 dBm
Continue with steps of 2 dB
Last counter: Number of measurements with RSSI > -80 dBm
RSSI<120dB -
120 dB < RSSI<
-
118
dB -
82dB< RSSI<
-
80dB-
116dB < RSSI<
-
114dB-
118dB < RSSI<
-
116dB
RSSI>
-
80dB
RSSI on PUSCH/PUCCH
Min
Mean
Max
AVG SINR PUCCH = average of measured
SINR values for PUCCH
Avg ([M8005C92]) Avg ([SINR_PUCCH_AVG])
LTE_5541b E-UTRAN Average SINR for PUCCH
Shows the Signal to Interference and Noise Ratio (SINR) for physical UL control channel
(PUCCH), measured in the eNodeBin dBm.
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
UL Power and Quality KPIs
SINR values for PUCCH
Avg ([M8005C92]) Avg ([SINR_PUCCH_AVG])
LTE_5541b E-UTRAN Average SINR for PUCCH
Shows the Signal to Interference and Noise Ratio (SINR) for physical UL control channel
(PUCCH), measured in the eNodeBin dBm.
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
UL Power and Quality KPIs
AVG SINR PUSCH = average of measured
SINR values for PUSCH
Avg [SINR_PUSCH_AVG])
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
LTE_5544b E-UTRAN Average SINR for PUSCH
Shows the Signal to Interference and Noise Ratio (SINR) for physical UL shared channel
(PUSCH), measured in the eNodeBin dBm.
Avg ([M8005C95])
UL Power and Quality KPIs
SINR values for PUSCH
Avg [SINR_PUSCH_AVG])
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
LTE_5544b E-UTRAN Average SINR for PUSCH
Shows the Signal to Interference and Noise Ratio (SINR) for physical UL shared channel
(PUSCH), measured in the eNodeBin dBm.
Avg ([M8005C95])
UL Power and Quality KPIs
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
23.05.2011 25.05.2011 27.05.2011 29.05.2011 31.05.2011 02.06.2011 04.06.2011 06.06.2011 09.06.2011 11.06.2011 13.06.2011 15.06.2011 17.06.2011 19.06.2011 21.06.2011
LTS_5541a Average SINR for PUCCH (dB)
LTS_5544a Average SINR for PUSCH (dB)
UL Power and Quality KPIs
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
23.05.2011 25.05.2011 27.05.2011 29.05.2011 31.05.2011 02.06.2011 04.06.2011 06.06.2011 09.06.2011 11.06.2011 13.06.2011 15.06.2011 17.06.2011 19.06.2011 21.06.2011
LTS_5541a Average SINR for PUCCH (dB)
LTS_5544a Average SINR for PUSCH (dB)
UL Power and Quality KPIs
AVG RSSI PUCCH = average of measured
RSSI values for PUCCH
Avg ([M8005C2]) Avg ([RSSI_PUCCH_AVG])
LTE_5441b E-UTRAN Average RSSI for PUCCH
Shows the average Received Signal Strength Indicator (RSSI) for physical UL control
channel (PUCCH), measured in the eNodeBin dBm.
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
UL Power and Quality KPIs
RSSI values for PUCCH
Avg ([M8005C2]) Avg ([RSSI_PUCCH_AVG])
LTE_5441b E-UTRAN Average RSSI for PUCCH
Shows the average Received Signal Strength Indicator (RSSI) for physical UL control
channel (PUCCH), measured in the eNodeBin dBm.
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
UL Power and Quality KPIs
AVG RSSI PUSCH = average of measured
RSSI values for PUSCH
Avg [RSSI_PUSCH_AVG])
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
Avg([M8005C5])
LTE_5444b E-UTRAN Average RSSI for PUSCH
Shows the average Received Signal Strength Indicator (RSSI) for physical UL shared
channel (PUSCH), measured in the eNodeBin dBm.
UL Power and Quality KPIs
RSSI values for PUSCH
Avg [RSSI_PUSCH_AVG])
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
Avg([M8005C5])
LTE_5444b E-UTRAN Average RSSI for PUSCH
Shows the average Received Signal Strength Indicator (RSSI) for physical UL shared
channel (PUSCH), measured in the eNodeBin dBm.
UL Power and Quality KPIs
-110.00
-105.00
-100.00
-95.00
-90.00
-85.00
-80.00
2… 2… 2… 2… 3… 0… 0… 0… 0… 1… 1… 1… 1… 1… 2…
LTE_5441a Average RSSI for PUCCH (dBm)
LTS_5444a Average RSSI for PUSCH (dBm)
UL Power and Quality KPIs
-105.00
-100.00
-95.00
-90.00
-85.00
-80.00
2… 2… 2… 2… 3… 0… 0… 0… 0… 1… 1… 1… 1… 1… 2…
LTE_5441a Average RSSI for PUCCH (dBm)
LTS_5444a Average RSSI for PUSCH (dBm)
UL Power and Quality KPIs
•Capacity areas
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
PDCCH Resources
•The MaximumNumberOfOFDMSymbolsForPDCCHparameter defines how many OFDM symbols can be used.
•ExampleshowsdynamiccaseforMaximumNumberOfOFDMSymbolsForPDCCH=3 (yellow)
•In RL30 selection between 1,2 or 3 symbols is dynamic based on actLdPdcchsetting
maxNrSymPdcch
LNCEL; 1..3; 1;3
actLdPdcch
LNCEL; false (0), true
(1); false
M8011C59 Number of subframes with 1 OFDM symbol allocated to PDCCH
M8011C60 Number of subframes with 2 OFDM symbols allocated to PDCCH
M8011C61 Number of subframes with 3 OFDM symbols allocated to PDCCH
•The MaximumNumberOfOFDMSymbolsForPDCCHparameter defines how many OFDM symbols can be used.
•ExampleshowsdynamiccaseforMaximumNumberOfOFDMSymbolsForPDCCH=3 (yellow)
•In RL30 selection between 1,2 or 3 symbols is dynamic based on actLdPdcchsetting
maxNrSymPdcch
LNCEL; 1..3; 1;3
actLdPdcch
LNCEL; false (0), true
(1); false
M8011C59 Number of subframes with 1 OFDM symbol allocated to PDCCH
M8011C60 Number of subframes with 2 OFDM symbols allocated to PDCCH
M8011C61 Number of subframes with 3 OFDM symbols allocated to PDCCH
•Capacity areas
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
BLER Statistics (1/4)
Note: QPSK BLER (MCS0..10) and 16QAM BLER (MCS11..20). 16QAM High MCS (MCS 21-24)
LTE44 64QAM in UL, MCS 21 –MCS 28
Formula: Total PUSCH BLER : [sum(M8001C16..C44) /
sum(M8001C74..C102)] *100
BLER related Counters (M8001)
Counter Name Expected Value Test Value
Sum [PUSCH_TRANS_USING_MCS0...MCS28 (C74-C98)] High value 902989
Sum [PUSCH_TRANS_NACK_MCS0...MCS28 (C16-C40)] Low value 335
Total PUSCH BLER = (335/902989) *100 = 0.037 %
Note: QPSK BLER (MCS0..10) and 16QAM BLER (MCS11..20). 16QAM High MCS (MCS 21-24)
LTE44 64QAM in UL, MCS 21 –MCS 28
Formula: Total PUSCH BLER : [sum(M8001C16..C44) /
sum(M8001C74..C102)] *100
BLER related Counters (M8001)
Counter Name Expected Value Test Value
Sum [PUSCH_TRANS_USING_MCS0...MCS28 (C74-C98)] High value 902989
Sum [PUSCH_TRANS_NACK_MCS0...MCS28 (C16-C40)] Low value 335
Total PUSCH BLER = (335/902989) *100 = 0.037 %
BLER Statistics (2/4)
BLER related Counters (M8001)
Counter Name Expected Value Test Value
PUSCH_TRANS_USING_MCS0 0 0
PUSCH_TRANS_USING_MCS1 0 0
PUSCH_TRANS_USING_MCS2 0 0
PUSCH_TRANS_USING_MCS3 0 0
PUSCH_TRANS_USING_MCS4 0 0
PUSCH_TRANS_USING_MCS5 0 25
PUSCH_TRANS_USING_MCS6 0 0
PUSCH_TRANS_USING_MCS7 0 0
PUSCH_TRANS_USING_MCS8 0 0
PUSCH_TRANS_USING_MCS9 0 0
PUSCH_TRANS_USING_MCS10 0 0
PUSCH_TRANS_USING_MCS11 0 0
BLER related Counters (M8001)
Counter Name Expected Value Test Value
PUSCH_TRANS_USING_MCS12 0 0
PUSCH_TRANS_USING_MCS13 0 0
PUSCH_TRANS_USING_MCS14 0 0
PUSCH_TRANS_USING_MCS15 0 0
PUSCH_TRANS_USING_MCS16 0 0
PUSCH_TRANS_USING_MCS17 0 0
PUSCH_TRANS_USING_MCS18 0 0
PUSCH_TRANS_USING_MCS19 0 0
PUSCH_TRANS_USING_MCS20 0 0
PUSCH_TRANS_USING_MCS21 0 0
PUSCH_TRANS_USING_MCS22 0 105
PUSCH_TRANS_USING_MCS23 0 844
PUSCH_TRANS_USING_MCS24 High Value 902015
BLER related Counters (M8001)
Counter Name Expected Value Test Value
PUSCH_TRANS_USING_MCS0 0 0
PUSCH_TRANS_USING_MCS1 0 0
PUSCH_TRANS_USING_MCS2 0 0
PUSCH_TRANS_USING_MCS3 0 0
PUSCH_TRANS_USING_MCS4 0 0
PUSCH_TRANS_USING_MCS5 0 25
PUSCH_TRANS_USING_MCS6 0 0
PUSCH_TRANS_USING_MCS7 0 0
PUSCH_TRANS_USING_MCS8 0 0
PUSCH_TRANS_USING_MCS9 0 0
PUSCH_TRANS_USING_MCS10 0 0
PUSCH_TRANS_USING_MCS11 0 0
BLER related Counters (M8001)
Counter Name Expected Value Test Value
PUSCH_TRANS_USING_MCS12 0 0
PUSCH_TRANS_USING_MCS13 0 0
PUSCH_TRANS_USING_MCS14 0 0
PUSCH_TRANS_USING_MCS15 0 0
PUSCH_TRANS_USING_MCS16 0 0
PUSCH_TRANS_USING_MCS17 0 0
PUSCH_TRANS_USING_MCS18 0 0
PUSCH_TRANS_USING_MCS19 0 0
PUSCH_TRANS_USING_MCS20 0 0
PUSCH_TRANS_USING_MCS21 0 0
PUSCH_TRANS_USING_MCS22 0 105
PUSCH_TRANS_USING_MCS23 0 844
PUSCH_TRANS_USING_MCS24 High Value 902015
BLER Statistics (3/4)
BLER related Counters (M8001)
Counter Name Expected Value Test Value
PUSCH_TRANS_NACK_MCS0 0 0
PUSCH_TRANS_NACK_MCS1 0 0
PUSCH_TRANS_NACK_MCS2 0 0
PUSCH_TRANS_NACK_MCS3 0 0
PUSCH_TRANS_NACK_MCS4 0 0
PUSCH_TRANS_NACK_MCS5 0 0
PUSCH_TRANS_NACK_MCS6 0 0
PUSCH_TRANS_NACK_MCS7 0 0
PUSCH_TRANS_NACK_MCS8 0 0
PUSCH_TRANS_NACK_MCS9 0 0
PUSCH_TRANS_NACK_MCS10 0 0
PUSCH_TRANS_NACK_MCS11 0 0
BLER related Counters (M8001)
Counter Name Expected Value Test Value
PUSCH_TRANS_NACK_MCS12 0 0
PUSCH_TRANS_NACK_MCS13 0 0
PUSCH_TRANS_NACK_MCS14 0 0
PUSCH_TRANS_NACK_MCS15 0 0
PUSCH_TRANS_NACK_MCS16 0 0
PUSCH_TRANS_NACK_MCS17 0 0
PUSCH_TRANS_NACK_MCS18 0 0
PUSCH_TRANS_NACK_MCS19 0 0
PUSCH_TRANS_NACK_MCS20 0 0
PUSCH_TRANS_NACK_MCS21 0 0
PUSCH_TRANS_NACK_MCS22 0 0
PUSCH_TRANS_NACK_MCS23 0 0
PUSCH_TRANS_NACK_MCS24 0 335
BLER related Counters (M8001)
Counter Name Expected Value Test Value
PUSCH_TRANS_NACK_MCS0 0 0
PUSCH_TRANS_NACK_MCS1 0 0
PUSCH_TRANS_NACK_MCS2 0 0
PUSCH_TRANS_NACK_MCS3 0 0
PUSCH_TRANS_NACK_MCS4 0 0
PUSCH_TRANS_NACK_MCS5 0 0
PUSCH_TRANS_NACK_MCS6 0 0
PUSCH_TRANS_NACK_MCS7 0 0
PUSCH_TRANS_NACK_MCS8 0 0
PUSCH_TRANS_NACK_MCS9 0 0
PUSCH_TRANS_NACK_MCS10 0 0
PUSCH_TRANS_NACK_MCS11 0 0
BLER related Counters (M8001)
Counter Name Expected Value Test Value
PUSCH_TRANS_NACK_MCS12 0 0
PUSCH_TRANS_NACK_MCS13 0 0
PUSCH_TRANS_NACK_MCS14 0 0
PUSCH_TRANS_NACK_MCS15 0 0
PUSCH_TRANS_NACK_MCS16 0 0
PUSCH_TRANS_NACK_MCS17 0 0
PUSCH_TRANS_NACK_MCS18 0 0
PUSCH_TRANS_NACK_MCS19 0 0
PUSCH_TRANS_NACK_MCS20 0 0
PUSCH_TRANS_NACK_MCS21 0 0
PUSCH_TRANS_NACK_MCS22 0 0
PUSCH_TRANS_NACK_MCS23 0 0
PUSCH_TRANS_NACK_MCS24 0 335
Throughput and Latency Measurements
•RLC level
-M8012C17: Received RLC data volume on UL in Kbyte
-M8012C18: Transmitted RLC data volume on DL in Kbyte
•PDCP level
-M8012C21/C22/C23: Minimum/maximum/mean PDCP layer throughput on UL in Kbit/s
-M8012C24/C25/C26: Minimum/maximum/mean PDCP layer throughput on DL in Kbit/s
-M8001C3/C4/C5: Minimum/maximum/mean delay of a PDCP packet within eNodeBon UL in ms
-M8001C0/C1/C2: Minimum/maximum/mean delay of a PDCP packet within eNodeBon DL in ms
PDCP Protocol and Cell Throughput related Trigger Counters
Counter Name Expected Value Test Value
PDCP_DATA_RATE_MEAN_DL 2048 (kbps) 2041
PDCP_DATA_RATE_MEAN_UL 2048 (kbps) 2040
PDCP_DATA_RATE_MIN_DL 2048 (kbps) 1943
PDCP_DATA_RATE_MIN_UL 2048 (kbps) 1599
PDCP_DATA_RATE_MAX_DL 2048 (kbps) 2187
PDCP_DATA_RATE_MAX_UL 2048 (kbps) 2476
•RLC level
-M8012C17: Received RLC data volume on UL in Kbyte
-M8012C18: Transmitted RLC data volume on DL in Kbyte
•PDCP level
-M8012C21/C22/C23: Minimum/maximum/mean PDCP layer throughput on UL in Kbit/s
-M8012C24/C25/C26: Minimum/maximum/mean PDCP layer throughput on DL in Kbit/s
-M8001C3/C4/C5: Minimum/maximum/mean delay of a PDCP packet within eNodeBon UL in ms
-M8001C0/C1/C2: Minimum/maximum/mean delay of a PDCP packet within eNodeBon DL in ms
PDCP Protocol and Cell Throughput related Trigger Counters
Counter Name Expected Value Test Value
PDCP_DATA_RATE_MEAN_DL 2048 (kbps) 2041
PDCP_DATA_RATE_MEAN_UL 2048 (kbps) 2040
PDCP_DATA_RATE_MIN_DL 2048 (kbps) 1943
PDCP_DATA_RATE_MIN_UL 2048 (kbps) 1599
PDCP_DATA_RATE_MAX_DL 2048 (kbps) 2187
PDCP_DATA_RATE_MAX_UL 2048 (kbps) 2476
Throughput KPIs
AVG UL RLC CELL THP =
(UL transmitted RLC PDU volume) * 8 /
(MEASUREMENT_DURATION * 60)
Sum ([M8012C17]) * 8 /
(sum(MEASUREMENT_DU
RATION) * 60)
Sum ([RLC_PDU_VOL_TRANSMITTED]) * 8 /
(sum (MEASUREMENT_DURATION) * 60)
LTE_5283b E-UTRAN average RLC Layer Cell Throughput UL
Shows the average RLC layer throughput per cell in uplink direction in Kbit/s.
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
AVG UL RLC CELL THP =
(UL transmitted RLC PDU volume) * 8 /
(MEASUREMENT_DURATION * 60)
Sum ([M8012C17]) * 8 /
(sum(MEASUREMENT_DU
RATION) * 60)
Sum ([RLC_PDU_VOL_TRANSMITTED]) * 8 /
(sum (MEASUREMENT_DURATION) * 60)
LTE_5283b E-UTRAN average RLC Layer Cell Throughput UL
Shows the average RLC layer throughput per cell in uplink direction in Kbit/s.
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
Throughput KPIs
AVG DL RLC CELL THP =
(DL transmitted RLC PDU volume) * 8 /
(MEASUREMENT_DURATION * 60)
Sum ([M8012C18]) * 8 /
(sum(MEASUREMENT_DU
RATION) * 60)
Sum ([RLC_PDU_VOL_TRANSMITTED]) * 8 /
(sum (MEASUREMENT_DURATION) * 60)
LTE5284b E-UTRAN average RLC Layer Cell Throughput DL
Shows the average RLC layer throughput per cell in downlink direction in Kbit/s.
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
AVG DL RLC CELL THP =
(DL transmitted RLC PDU volume) * 8 /
(MEASUREMENT_DURATION * 60)
Sum ([M8012C18]) * 8 /
(sum(MEASUREMENT_DU
RATION) * 60)
Sum ([RLC_PDU_VOL_TRANSMITTED]) * 8 /
(sum (MEASUREMENT_DURATION) * 60)
LTE5284b E-UTRAN average RLC Layer Cell Throughput DL
Shows the average RLC layer throughput per cell in downlink direction in Kbit/s.
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
E-UTRAN average RLC Layer Cell Throughput DL/UL
0.00
2,000.00
4,000.00
6,000.00
8,000.00
10,000.00
12,000.00
14,000.00
16,000.00
18,000.00
23.05.2011 25.05.2011 27.05.2011 29.05.2011 31.05.2011 02.06.2011 04.06.2011 06.06.2011 09.06.2011 11.06.2011 13.06.2011 15.06.2011 17.06.2011 19.06.2011 21.06.2011
LTE_5283a Average RLC Layer Cell Throughput Uplink (kbit/s)
LTE_5284a Average RLC Layer Cell Throughput Downlink (kbit/s)
0.00
2,000.00
4,000.00
6,000.00
8,000.00
10,000.00
12,000.00
14,000.00
16,000.00
18,000.00
23.05.2011 25.05.2011 27.05.2011 29.05.2011 31.05.2011 02.06.2011 04.06.2011 06.06.2011 09.06.2011 11.06.2011 13.06.2011 15.06.2011 17.06.2011 19.06.2011 21.06.2011
LTE_5283a Average RLC Layer Cell Throughput Uplink (kbit/s)
LTE_5284a Average RLC Layer Cell Throughput Downlink (kbit/s)
AVG UL PDCP CELL THP = average PDCP cell
throughput UL
Avg ([M8012C23]) Avg ([PDCP_DATA_RATE_MEAN_UL])
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
Throughput KPIs
LTE_5289c E-UTRAN average PDCP Layer Cell Throughput UL
Shows the average PDCP layer throughput per cell in uplink direction.
Note; LTE_5294c gives the average PDCP Layer Cell Throughput UL for QCI 1 DRBs
throughput UL
Avg ([M8012C23]) Avg ([PDCP_DATA_RATE_MEAN_UL])
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
Throughput KPIs
LTE_5289c E-UTRAN average PDCP Layer Cell Throughput UL
Shows the average PDCP layer throughput per cell in uplink direction.
Note; LTE_5294c gives the average PDCP Layer Cell Throughput UL for QCI 1 DRBs
Throughput KPIs
AVG DL PDCP CELL THP = average PDCP cell
throughput DL
Avg ([M8012C26]) Avg ([PDCP_DATA_RATE_MEAN_DL])
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
LTE_5292c E-UTRAN average PDCP Layer Cell Throughput DL
Shows the average PDCP layer throughput per cell in downlink direction.
Note; LTE_5293c gives the average PDCP Layer Cell Throughput DL for QCI 1 DRBs
AVG DL PDCP CELL THP = average PDCP cell
throughput DL
Avg ([M8012C26]) Avg ([PDCP_DATA_RATE_MEAN_DL])
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
LTE_5292c E-UTRAN average PDCP Layer Cell Throughput DL
Shows the average PDCP layer throughput per cell in downlink direction.
Note; LTE_5293c gives the average PDCP Layer Cell Throughput DL for QCI 1 DRBs
Latency KPIs
LTE_5137a E-UTRAN Average Latency Uplink
Shows the retention period (delay) of a PDCP SDU (UL) inside eNB
Delay = time starting at the arrival of the PDCP SDU in the eNBand ending at the first
transmission of a packet over S1 containing a segment of the SDU
LatencyAvgUL = PDCP SDU delay on UL
DTCH Mean
Avg ([M8001C5]) Avg ([PDCP_SDU_DELAY_UL_DTCH_MEAN])
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
LTE_5137a E-UTRAN Average Latency Uplink
Shows the retention period (delay) of a PDCP SDU (UL) inside eNB
Delay = time starting at the arrival of the PDCP SDU in the eNBand ending at the first
transmission of a packet over S1 containing a segment of the SDU
LatencyAvgUL = PDCP SDU delay on UL
DTCH Mean
Avg ([M8001C5]) Avg ([PDCP_SDU_DELAY_UL_DTCH_MEAN])
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
LatencyAvgDL = PDCP SDU delay on DL
DTCH Mean
Avg ([M8001C2]) Avg ([PDCP_SDU_DELAY_DL_DTCH_MEAN])
E-UTRAN Average Latency Downlink
Shows the retention period (delay) of a PDCP SDU (DL) inside eNB
Delay = time from reception of IP packet to transmission of first packet over the Uuinterface
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
Latency KPIs
DTCH Mean
Avg ([M8001C2]) Avg ([PDCP_SDU_DELAY_DL_DTCH_MEAN])
E-UTRAN Average Latency Downlink
Shows the retention period (delay) of a PDCP SDU (DL) inside eNB
Delay = time from reception of IP packet to transmission of first packet over the Uuinterface
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
Latency KPIs
Latency KPIs
0.00
10.00
20.00
30.00
40.00
50.00
60.00
70.00
80.00
90.00
100.00
23.05.2011 25.05.2011 27.05.2011 29.05.2011 31.05.2011 02.06.2011 04.06.2011 06.06.2011 09.06.2011 11.06.2011 13.06.2011 15.06.2011 17.06.2011 19.06.2011 21.06.2011
LTE_5137a Average Latency UL (ms)
LTE_5134a Average Latency DL (ms)
0.00
10.00
20.00
30.00
40.00
50.00
60.00
70.00
80.00
90.00
100.00
23.05.2011 25.05.2011 27.05.2011 29.05.2011 31.05.2011 02.06.2011 04.06.2011 06.06.2011 09.06.2011 11.06.2011 13.06.2011 15.06.2011 17.06.2011 19.06.2011 21.06.2011
LTE_5137a Average Latency UL (ms)
LTE_5134a Average Latency DL (ms)
LatencyAvgDL=PDCP SDU delay on DL DTCH
Mean for QCI1 DRBs
avg([M8001C269]) avg([PDCP_RET_DL_DEL_MEAN_QCI_1])
LTE_5138a E-UTRAN Average Latency Downlink for QCI1 DRBs
Shows the retention period (delay) of a PDCP SDU (DL) inside eNBfor QCI1 DRBs. Time from
reception of IP packet to transmission of first packet over the Uuinterface.
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
Latency KPIs
LTE_5556a for QCI2
LTE_5557a for QCI3
LTE_5558a for QCI4
LTE_5139a for Non-GBR
Mean for QCI1 DRBs
avg([M8001C269]) avg([PDCP_RET_DL_DEL_MEAN_QCI_1])
LTE_5138a E-UTRAN Average Latency Downlink for QCI1 DRBs
Shows the retention period (delay) of a PDCP SDU (DL) inside eNBfor QCI1 DRBs. Time from
reception of IP packet to transmission of first packet over the Uuinterface.
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
Latency KPIs
LTE_5556a for QCI2
LTE_5557a for QCI3
LTE_5558a for QCI4
LTE_5139a for Non-GBR
•Capacity areas
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
Cell Availability Measurements
•Cell availability evaluated once approximately every 10s
-M8020C3: Number of evaluations the cell is available
-M8020C4: Number of evaluations the cell is planned unavailable
-M8020C5: Number of evaluations the cell in unplanned unavailable
-M8020C6: Total number of evaluations
M8020C3
Cell available
M8020C5
Cell planned unavailable
(maintenance work)
M8020C4
Cell unplanned
unavailable (fault)
•Cell availability evaluated once approximately every 10s
-M8020C3: Number of evaluations the cell is available
-M8020C4: Number of evaluations the cell is planned unavailable
-M8020C5: Number of evaluations the cell in unplanned unavailable
-M8020C6: Total number of evaluations
M8020C3
Cell available
M8020C5
Cell planned unavailable
(maintenance work)
M8020C4
Cell unplanned
unavailable (fault)
CELL AVR = (time of cell is available for
services) / (total measured time) =
(number of samples when cell is available) /
(number of all samples)
Sum ([M8020C3]) /
sum ([M8020C6] * 100
Sum ([SAMPLES_CELL_AV]) /
Sum ([DENOM_CELL_AV]) * 100%
LTE_5750a E-UTRAN Cell Availability Ratio
Shows the percentage of time the cell is available for services
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
Cell Availability KPIs
services) / (total measured time) =
(number of samples when cell is available) /
(number of all samples)
Sum ([M8020C3]) /
sum ([M8020C6] * 100
Sum ([SAMPLES_CELL_AV]) /
Sum ([DENOM_CELL_AV]) * 100%
LTE_5750a E-UTRAN Cell Availability Ratio
Shows the percentage of time the cell is available for services
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
Cell Availability KPIs
CELL PL UAVR = (time of cell is planned
unavailable for services) / (total measured
time) =
(number of samples when cell is planned
unavailable) / (number of all samples)
Sum ([M8020C4]) /
sum ([M8020C6] * 100
Sum ([SAMPLES_CELL_PLAN_UNAV]) /
Sum ([DENOM_CELL_AV]) * 100%
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
LTE_5751a E-UTRAN Planned Cell Unavailability Ratio
Shows the percentage of time the cell is not available for services as planned by the
operator (e.g. due to maintenance work)
Cell Availability KPIs
unavailable for services) / (total measured
time) =
(number of samples when cell is planned
unavailable) / (number of all samples)
Sum ([M8020C4]) /
sum ([M8020C6] * 100
Sum ([SAMPLES_CELL_PLAN_UNAV]) /
Sum ([DENOM_CELL_AV]) * 100%
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
LTE_5751a E-UTRAN Planned Cell Unavailability Ratio
Shows the percentage of time the cell is not available for services as planned by the
operator (e.g. due to maintenance work)
Cell Availability KPIs
CELL UPL UAVR = (time of cell is unplanned
unavailable for services) / (total measured
time) =
(number of samples when cell is unplanned
unavailable) / (number of all samples)
Sum ([M8020C5]) /
sum ([M8020C6] * 100
Sum ([SAMPLES_CELL_UNPLAN_UNAV]) /
Sum ([DENOM_CELL_AV]) * 100%
This KPI shows the ratio of services in a cell being unplanned unavailable for end-users.
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
LTE_5752a E-UTRAN Unplanned Cell Unavailability Ratio
Shows the percentage of time the cell is not available for services NOT planned by the
operator (e.g. due to faults)
Cell Availability KPIs
unavailable for services) / (total measured
time) =
(number of samples when cell is unplanned
unavailable) / (number of all samples)
Sum ([M8020C5]) /
sum ([M8020C6] * 100
Sum ([SAMPLES_CELL_UNPLAN_UNAV]) /
Sum ([DENOM_CELL_AV]) * 100%
This KPI shows the ratio of services in a cell being unplanned unavailable for end-users.
Logical formula
Summarization
formula (PI ID) Summarization formula (Abbreviation)
LTE_5752a E-UTRAN Unplanned Cell Unavailability Ratio
Shows the percentage of time the cell is not available for services NOT planned by the
operator (e.g. due to faults)
Cell Availability KPIs
90.00
92.00
94.00
96.00
98.00
100.00
23.05.2011 25.05.2011 27.05.2011 29.05.2011 31.05.2011 02.06.2011 04.06.2011 06.06.2011 09.06.2011 11.06.2011 13.06.2011 15.06.2011 17.06.2011 19.06.2011 21.06.2011
LTE_5750a Cell Availability Ratio (%)LTE_5239a Cell Availability excluding Blocked by User (%)
Cell Availability KPIs
92.00
94.00
96.00
98.00
100.00
23.05.2011 25.05.2011 27.05.2011 29.05.2011 31.05.2011 02.06.2011 04.06.2011 06.06.2011 09.06.2011 11.06.2011 13.06.2011 15.06.2011 17.06.2011 19.06.2011 21.06.2011
LTE_5750a Cell Availability Ratio (%)LTE_5239a Cell Availability excluding Blocked by User (%)
Cell Availability KPIs
eNBLoad(M8018)
LTE eNBLoad measurement (M8018) measures load and
capacity relevant internal indicatorsper eNB.
M8018C0 / Active UE per eNBaverage
Updated: The arithmetical average of samples taken from the number of UEs, having one
SRB and at least one DRB established. The length of the sampling interval is 4
seconds.
M8018C1 / ActiveUE per eNBmax
Updated: After change of number of active UEs
LTE eNBLoad measurement (M8018) measures load and
capacity relevant internal indicatorsper eNB.
M8018C0 / Active UE per eNBaverage
Updated: The arithmetical average of samples taken from the number of UEs, having one
SRB and at least one DRB established. The length of the sampling interval is 4
seconds.
M8018C1 / ActiveUE per eNBmax
Updated: After change of number of active UEs
•Capacity areas
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
•LTE QoSconcept
•Outer and Inner Loop Link Quality Control
•Inner Loop and Outer Loop Link Adaptation DL
•Inner Loop and Outer Loop Link Adaptation UL
•Adaptive Transmission Bandwidth
•E-ULA/F-ULA
•UL and DL scheduling
•MIMO
•Power control
•PDCCH usage
•Cell throughput
•Cell availability
•Cell resource Groups
Capacity areas and cell resource measurements
LTE1382: Cell resource groups
•LTE1382 Cell Resource Groups is a new feature which improves
Network Sharing concept in LTE
•LTERadio Access Network*, can be shared with the help of two
network sharing features:
–MORAN (Multi-Operator RAN) which is NSN proprietary solution
each Operator has its own Core Network nodes while eNBequipment
is shared between the Operators
moreover each Operator has its own dedicated cells
–MOCN(Multi-Operator Core Network) which is standardized by 3GPP
similar to MORAN, each Operator has its own Core Network nodes
while eNBequipment is shared
in MOCN Operators shares also eNBcells i.e. cell resources are
available for users of both (or more) Operators
RAN-based Network Sharing solutions for LTE
•LTE1382 Cell Resource Groups is a new feature which improves
Network Sharing concept in LTE
•LTERadio Access Network*, can be shared with the help of two
network sharing features:
–MORAN (Multi-Operator RAN) which is NSN proprietary solution
each Operator has its own Core Network nodes while eNBequipment
is shared between the Operators
moreover each Operator has its own dedicated cells
–MOCN(Multi-Operator Core Network) which is standardized by 3GPP
similar to MORAN, each Operator has its own Core Network nodes
while eNBequipment is shared
in MOCN Operators shares also eNBcells i.e. cell resources are
available for users of both (or more) Operators
RAN-based Network Sharing solutions for LTE
LTE1382: Cell resource groups
•In MORAN, each Operator has its own cells, therefore no special feature that provides resource reservation is required for MORAN
•In MOCN air resources are fully pooled, i.e. there are no reserved resources (in terms of number of subscribers and certain GBR capacity) for the Operators within thecommon carrier
Resource aspects in shared networks before the feature
Moreover each Operator controls its own number of Active
UEs in the dedicated cell, number of DRBs and number of
VoIP users.
In MOCN users of both Operators shares the same resources.
Both Admission Control and Scheduler mechanisms does not
take into account PLMN of the user, which may lead to
drawbacks unacceptable by the Operators
Only users of Operator A can access this cell, and all cell
resources are available only for Op.A users
•In MORAN, each Operator has its own cells, therefore no special feature that provides resource reservation is required for MORAN
•In MOCN air resources are fully pooled, i.e. there are no reserved resources (in terms of number of subscribers and certain GBR capacity) for the Operators within thecommon carrier
Resource aspects in shared networks before the feature
Moreover each Operator controls its own number of Active
UEs in the dedicated cell, number of DRBs and number of
VoIP users.
In MOCN users of both Operators shares the same resources.
Both Admission Control and Scheduler mechanisms does not
take into account PLMN of the user, which may lead to
drawbacks unacceptable by the Operators
Only users of Operator A can access this cell, and all cell
resources are available only for Op.A users
LTE1382: Cell resource groups
Counter name
M8011C70 TTIs used in UL by cell resource group 1
M8011C71 TTIs used in UL by cell resource group 2
M8011C72 TTIs used in UL by cell resource group 3
M8011C73 TTIs used in UL by cell resource group 4
M8011C74 Number of available TTIs for PUSCH
M8011C75 TTIs used in DL by cell resource group 1
M8011C76 TTIs used in DL by cell resource group 2
M8011C77 TTIs used in DL by cell resource group 3
M8011C78 TTIs used in DL by cell resource group 4
M8011C79 Number of available TTIs for PDSCH
Counter name
M8011C70 TTIs used in UL by cell resource group 1
M8011C71 TTIs used in UL by cell resource group 2
M8011C72 TTIs used in UL by cell resource group 3
M8011C73 TTIs used in UL by cell resource group 4
M8011C74 Number of available TTIs for PUSCH
M8011C75 TTIs used in DL by cell resource group 1
M8011C76 TTIs used in DL by cell resource group 2
M8011C77 TTIs used in DL by cell resource group 3
M8011C78 TTIs used in DL by cell resource group 4
M8011C79 Number of available TTIs for PDSCH
LTE1382: Cell resource groups
KPI name formula
LTE_5411a E-UTRAN Cell Resource Group 1Utilization Ratio
in DL
100*sum([M8011C75])/ sum([M8011C79])
LTE_5412a E-UTRAN Cell Resource Group 2 Utilization Ratio
in DL
100*sum([M8011C76])/ sum([M8011C79])
LTE_5413a E-UTRAN Cell Resource Group 3Utilization Ratio
in DL
100*sum([M8011C77])/ sum([M8011C79])
LTE_5414a E-UTRAN Cell Resource Group 4 Utilization Ratio
in DL
100*sum([M8011C78])/ sum([M8011C79])
LTE_5415a E-UTRAN Cell Resource Group 1 Utilization Ratio
in UL
100*sum([M8011C70])/ sum([M8011C74])
LTE_5416a E-UTRAN Cell Resource Group 2 Utilization Ratio
in UL
100*sum([M8011C71])/ sum([M8011C74])
LTE_5417a E-UTRAN Cell Resource Group 3 Utilization Ratio
in UL
100*sum([M8011C72])/ sum([M8011C74])
LTE_5418a E-UTRAN Cell Resource Group 4 Utilization Ratio
in UL
100*sum([M8011C73])/ sum([M8011C74])
KPI name formula
LTE_5411a E-UTRAN Cell Resource Group 1Utilization Ratio
in DL
100*sum([M8011C75])/ sum([M8011C79])
LTE_5412a E-UTRAN Cell Resource Group 2 Utilization Ratio
in DL
100*sum([M8011C76])/ sum([M8011C79])
LTE_5413a E-UTRAN Cell Resource Group 3Utilization Ratio
in DL
100*sum([M8011C77])/ sum([M8011C79])
LTE_5414a E-UTRAN Cell Resource Group 4 Utilization Ratio
in DL
100*sum([M8011C78])/ sum([M8011C79])
LTE_5415a E-UTRAN Cell Resource Group 1 Utilization Ratio
in UL
100*sum([M8011C70])/ sum([M8011C74])
LTE_5416a E-UTRAN Cell Resource Group 2 Utilization Ratio
in UL
100*sum([M8011C71])/ sum([M8011C74])
LTE_5417a E-UTRAN Cell Resource Group 3 Utilization Ratio
in UL
100*sum([M8011C72])/ sum([M8011C74])
LTE_5418a E-UTRAN Cell Resource Group 4 Utilization Ratio
in UL
100*sum([M8011C73])/ sum([M8011C74])
Tags
Categories
GeneralDownload
Download Slideshow Get the original presentation fileQuick Actions
Statistics
- Views 83
- Slides 117
- Age 463 days
Related Slideshows
22
Pray For The Peace Of Jerusalem and You Will Prosper
RodolfoMoralesMarcuc
30 views
26
Don_t_Waste_Your_Life_God.....powerpoint
chalobrido8
32 views
31
VILLASUR_FACTORS_TO_CONSIDER_IN_PLATING_SALAD_10-13.pdf
JaiJai148317
30 views
14
Fertility awareness methods for women in the society
Isaiah47
29 views
35
Chapter 5 Arithmetic Functions Computer Organisation and Architecture
RitikSharma297999
26 views
5
syakira bhasa inggris (1) (1).pptx.......
ourcommunity56
28 views