WCDMA RAN P6 Tuning Chapter 5: UE Tuning - Packet Switched Data
Chapter 5 Objectives After this module, the participants will be able to: 1. Define and show different performance indicators using TEMS Investigation RAN analysis 2. Explain accessibility 3. Explain retainability 4. Explain integrity (BLER and Throughput)
Š Ericsson AB 2008 05_03813 LZU 108 6919 Uen Rev. A
Figure2 5 -
UE Tuning-Packet Switced Data
Preparations FTP Server address and login for uploading and downloading data APN configuration of the SIM card Test files in various sizes (1025kb, 3MB etc.) depending on the demanded PS tests The TCP window size set in the PC
© Ericsson AB 2008 05_03813 LZU 108 6919 Uen Rev. A
Figure3 5 -
UE Tuning-Packet Switced Data
Accessibility – Sessions and connection definition
© Ericsson AB 2008 05_03813 LZU 108 6919 Uen Rev. A
Figure4 5 -
UE Tuning-Packet Switced Data
Accessibility - Classification
RAS dial RAS Failure Authentication Failure IP Address Assigned PS Attach PS Attach Failure PDP context Activation PDP context Activation Failure Session Start Session Error
© Ericsson AB 2008 05_03813 LZU 108 6919 Uen Rev. A
Figure5 5 -
UE Tuning-Packet Switced Data
Accessibility - Access Failures definition (Investigation) Distribution chart of PS RAS Error
33%
67%
block reason: other
Š Ericsson AB 2008 05_03813 LZU 108 6919 Uen Rev. A
Figure6 5 -
no ppp control protocols configured
UE Tuning-Packet Switced Data
Accessibility Statistics PS Data Accessibility Statistics
Level 1
Level 2
Level 3
Level 4
No Data
Total
Total PS RAS Dialup
0 (0%)
0 (0%)
0 (0%)
0 (0%)
28 (100%)
28 (100%)
Total PS RAS Dialup Success
0 (0%)
0 (0%)
0 (0%)
0 (0%)
19 (100%)
19 (100%)
Total PS Attach
0 (0%)
0 (0%)
0 (0%)
0 (0%)
1 (100%)
1 (100%)
0
0
0
0
0
0
9 (39%)
0 (0%)
11 (48%)
1 (4%)
2 (9%)
23 (100%)
0
0
0
0
0
0
Total PS Attach Failure Total PDP Context Activation Total PDP Context Reject PS RAS Dialup Success Rate
67,9%
PS Attach Success Rate
100,0%
PDP Context Activation Success Rate
100,0%
Š Ericsson AB 2008 05_03813 LZU 108 6919 Uen Rev. A
Figure7 5 -
UE Tuning-Packet Switced Data
PS setup time Statistics
PS Setup Time Statistics
Min
Average
Max
PS Attach
0,0
1,3
17,1
PDP Context Activation
1,0
1,7
2,0
PS Access
6,0
7,1
18,0
Š Ericsson AB 2008 05_03813 LZU 108 6919 Uen Rev. A
Figure8 5 -
UE Tuning-Packet Switced Data
PDP Context data from TEMS Investigation
Š Ericsson AB 2008 05_03813 LZU 108 6919 Uen Rev. A
Figure9 5 -
UE Tuning-Packet Switced Data
Traffic Case
Š Ericsson AB 2008 05_03813 LZU 108 6919 Uen Rev. A
Figure105 -
UE Tuning-Packet Switced Data
Retainability - PS Session Statistics (Investigation) FTP Get
FTP Put
HTTP Load
Ping
Unknown
Total
PS Total Session
12
8
17
1
0
38
PS Total Session Error
3
2
2
0
0
7
75%
75%
89,5%
100%
PS Session Statistics
PS Total Session Success Rate
81,6%
PS Total Session Recovered Rate
n/a
PS HTTP Load Session Statistics
Total
Total Session
17
Total Session Error
2
Session Success Rate
89 %
Successful Session Duration (Min/Avg/Max) s
12/22/105
Successful Session DL Application Throughput (Min/Avg/Max) kbps
0/1/5
Successful Session UL Application Throughput (Min/Avg/Max) kbps
0/0/1
Š Ericsson AB 2008 05_03813 LZU 108 6919 Uen Rev. A
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UE Tuning-Packet Switced Data
Throughput - Application throughput DL in Investigation
Š Ericsson AB 2008 05_03813 LZU 108 6919 Uen Rev. A
Figure125 -
UE Tuning-Packet Switced Data
Throughput – Data Line charts for different UE
© Ericsson AB 2008 05_03813 LZU 108 6919 Uen Rev. A
Figure135 -
UE Tuning-Packet Switced Data
Throughput - RLC DL throughput in Investigation
Š Ericsson AB 2008 05_03813 LZU 108 6919 Uen Rev. A
Figure145 -
UE Tuning-Packet Switced Data
Throughput - Session throughput and THold
Š Ericsson AB 2008 05_03813 LZU 108 6919 Uen Rev. A
Figure155 -
UE Tuning-Packet Switced Data
PS Application DL Throughput Distribution chart of PS Application Downlink Throughput Range
7%
37%
56%
App throughput < 64 kps
64 kps <= App throughput < 128 kbps
128 kps <= App throughput < 384 kbps
Š Ericsson AB 2008 05_03813 LZU 108 6919 Uen Rev. A
Figure165 -
UE Tuning-Packet Switced Data
PS Application throughput Statistics I Min (kbps)
Average (kbps)
Max (kbps)
Average Application DL
1,0
65,7
367,0
Average Application UL
1,0
7,0
39,0
Median Application DL Throughput for spreading factor = 32
1,0
38,6
122,0
Median Application DL Throughput for spreading factor = 16
1,0
49,7
169,0
Median Application DL Throughput for spreading factor = 8
4,0
92,5
367,0
PS Binned Application Throughput Statistics
Š Ericsson AB 2008 05_03813 LZU 108 6919 Uen Rev. A
Figure175 -
UE Tuning-Packet Switced Data
PS Application throughput Statistics II App Throughput DL Median <= 64 kbps
64 kbps<App Throughput DL Median <= 128 kbps
128 kbps<App Throughput DL Median
Any App Throughput DL Median
Ec/No >= -4
38,59
49,73
92,59
60,31
-4 > Ec / No >= -8
64,00
54,61
93,92
70,84
-8 > Ec / No >= -12
0,00
0,00
0,00
0,00
Ec/No < -12
0,00
0,00
0,00
0,00
Any Ec/No
39,40
49,74
92,47
60,54
Š Ericsson AB 2008 05_03813 LZU 108 6919 Uen Rev. A
Figure185 -
UE Tuning-Packet Switced Data
PS Application throughput Statistics III SC
RLC DL Throughpu t Avg
Application DL Throughput Avg
RLC UL Throughpu t Avg
Application UL Throughput Avg
Spreadin g factor >= 32
Spreadin g factor >= 16
Spreadin g factor >= 8
Cell1
35
54,00
8,00
4,00
1,00
0,00
0,00
0,00
Cell1
35
0,00
48,00
0,00
26,00
0,00
0,00
0,00
Cell1
35
82,00
52,00
4,00
0,00
0,00
82,00
0,00
Cell1
35
203,00
122,00
7,00
0,00
0,00
0,00
203,00
Cell2
226
92,00
52,00
6,00
0,00
0,00
92,00
0,00
Cell2
226
0,00
10,00
0,00
2,00
0,00
0,00
0,00
Cell2
226
65,00
52,00
4,00
0,00
65,00
0,00
0,00
Cell2
226
63,00
52,00
2,00
0,00
63,00
0,00
0,00
Cell3
122
22,00
10,00
9,00
3,00
0,00
22,00
0,00
Best Serv er
Š Ericsson AB 2008 05_03813 LZU 108 6919 Uen Rev. A
Figure195 -
UE Tuning-Packet Switced Data
PS Spreading Factor Usage (Investigation) Distribution chart of PS Spreading Factor Usage
12% 39%
49%
RLC throughput < 64 kps
64 kps <= RLC throughput < 128 kbps
128 kps <= RLC throughput < 384 kbps
Š Ericsson AB 2008 05_03813 LZU 108 6919 Uen Rev. A
Figure205 -
UE Tuning-Packet Switced Data
Š Ericsson AB 2008 05_03813 LZU 108 6919 Uen Rev. A
Figure215 -
UE Tuning-Packet Switced Data