The document compares throughput using metroethernet (ME) and synchronous transport module level 1 (STM.1) networks by summarizing a case study. A nodeB was previously connected to a radio network controller via a metroethernet network, resulting in low throughput issues. The network topology was optimized to carry both the nodeB's ATM and fast ethernet traffic over a new STM.1 leased line. Site acceptance tests showed improved throughput performance after migrating the nodeB's tunnels from the metroethernet link to the new STM.1 link.

1. HUAWEI TECHNOLOGIES CO., LTD.
www.huawei.com
Huawei Confidential
Security Level:
2022/9/14
ME vs. STM.1
Throughput
Comparison Report

2. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
Background
 In Adana and Diyarbaır regions some cities fast ethernet links are connected
to RNC by Methroethernet data network.
 On all of these cities there is a common HSUPA throughput problem which
perceived by subscirbers.
 Due to this low throughput problem ssv/site acceptances are delayed for a
very long time. It also affects cluster acceptance tests.
 VF Transmission team and regional teams are also aware of this problem.
Page 2

3. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
PREVIOUS TOPOLOGY
 Data traffic of Ahmet Ersever NodeB was previously
carried on TT metroethernet network
MEDYAPARK
AHMET_ERSEVEN
NodeB
IMA/E1
6034 PTN 2886(D)PTN
IuB
FE
Data
network
FE
LEASED LINE STM.1
METROETH
A6017 PTN
IMA/E1
FE

4. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
Previous SSV Results when NodeB used
Metroethernet Network
5424_AHMET ERSEVER (SAHADA CALISMA YAPILMADAN
ONCE) 1. SEKTOR(288) 2. SEKTOR(289) 3. SEKTOR(290)
HSDPA_Multi session 5.83 MBPS 5.23 MBPS 5.57 MBPS
HSDPA_Single session 5.17 MBPS 4.85 MBPS 4.81 MBPS
HSUPA_Multi session 744.74 KBPS 727.79 KBPS 303.31 KBPS
HSUPA_Single session 500.69 KBPS 759.74 KBPS 552.39 KBPS

5. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
Optimized New Topology
 The network topology is optimized as follows;
 Both ATM and FE traffic of NodeB is now being carried on
STM-1 LL.
MEDYAPARK
AHMET_ERSEVER
NodeB
IMA/E1
6034 PTN 2886(D)PTN
IuB
FE
FE
LEASED LINE STM.1
A6017 PTN
IMA/E1
FE
LEASED LINE STM.1

6. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
 Tunnels of NodeB are optimized to the new Stm.1 link
from Metroethernet link .
 SSV results after NodeB service optimization:
5424_AHMET ERSEVER(CALISMA
YAPILDIKTAN SONRA)
1. SEKTOR(288) 2. SEKTOR(289) 3. SEKTOR(290)
STM1_HSDPA_Multi session 5.18 MBPS 4.34 MBPS 6.00 MBPS
STM1_HSDPA_Single session 4.77 MBPS 4.39 MBPS 5.53 MBPS
STM1_HSUPA_Multi session 1.81 MBPS 1.75 MBPS 1.80 MBPS
STM1_HSUPA_Single session 1.72 MBPS 1.71 MBPS 1.74 MBPS

7. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
RESULT
 Before the optimization NodeB was using ME link
for data traffic and within this topology SSV results
were not as desired.
 After optimization NodeB’s all traffic is being
carried on new STM-1 LL link and SSV results are
improved.

8. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
Appendix-1
Operation logs of service tunnel
optimization.

9. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
Thank you
www.huawei.com