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LTE Installation & Commissioning
Aug.13, 2013
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eNodeB • Specification • Electric requirements • Transmission requirements • Interface • Capacity
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Specification – eNodeB
Items Specifications
Technology LTE (FDD)
Channel Bandwidth 20MHz
Channel Card Capacity 20MHz 1C / 3S
DU Capacity 20MHz 3C / 3S with 3 channel cards
DU-RRU Interface Optic CPRI
Backhaul I/F FE/GE
Synchronization 1588 or GPS
Size (W x D x H) 434 x 385 x 88 mm, 14.7L
Weight 12kg
Power consumption 163W @20MHz 1C / 3S
Operating Temperature 0 ~ 50C
Operating Humidity 5 ~ 90%
Power Supply - 48VDC
Installation 19” Rack mountable
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Specification – eNodeB HW Overview
Main Card
Channel Card
Item Description
Main Card
- Main control processor - Call Processing, IP/GTP/PDCP, OAM SON - Reception of the GPS signal and creation/supply of the clock, - Alarm collection and report to LSM - Supports FE/GE interface for backhaul connection - Support UDE (User Defined Ethernet), UDA (User Defined Alarm) - Transport layer throughput: 1.35Gbps - 4,500 RRC_Connected Users - 10,800 Bearers
Channel Card
- Radio Scheduler, RLC - OFDMA(DL)/SC-FDMA(UL) Processing - Supporting loopback tests between the DU and the RRU - 20MHz channel BW, 1C/3Sec - 3x600 RRC_Connected Users/Cell - 3x1200 Bearers/Cell
DU Shelf - Fan module - Dust filter module - Power distribution module
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External Interfaces from DU
RRU Cable (Optic Cable-2.5Gbps)
SW debug
(2EA)
Board
Reset
CPU State
LED
UDE (2EA)
SW debug
Optic Back-haul
(2EA)
UDA
1pps
Analog
10MHz Rectifier IF
SW debug
CPU
Reset
LED
Rectifier
Power cable
10G Optic Back-haul
(2EA) (reserved)
GPS input
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Specification – Ports of eNodeB
Interface Connector Type Description
ACT - CPU Active LED
GPS - GPS Status LED
RST - Board Reset
DBG USB SW Debug (UART, RS-232)
CLK0, CLK1 - CLOCK IN, OUT
UDA Mini Champ User Defined Alarm (Rx: 9 port, Tx: 2 port)
UDE0, UDE1 RJ-45 User Defined Ethernet (10/100/1000 Base-T)
EDBG RJ-45 SW Debug(10/100/1000 Base-T)
REC RJ-45 Rectifier (RS-485)
BH0, BH1 SFP 1000 Base-LX/SX
BH2, BH3 SFP+ 10GE(Optional*)
BH2, BH3 (LED) - 10GE, SFP+ Status LED
1PPS SMA Reference Clock Out (1PPS)
A10M SMA Reference Clock Out (Analog 10 MHz)
GPS SMA GPS input
DBG0, DBG1 USB UART CPU, DSP Debug
L0~6 SFP CPRI optic (RRU interface)
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Specification - Remote Radio Unit
Items Description
Technology LTE
Operating Frequency
[Band 7]
DL : 2620 ~ 2690MHz
UL : 2500 ~ 2570MHz
Capacity 20MHz 1Carrier
RF Power 40W per path, total 80W
RF Chain 2T2R
Power consumption 440W (100 % load )
333W (50% load )
Dimension (W x D x H) 280 x 143 x 489mm, 19.6L
Weight 15kg
Input Power - 48 VDC
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DU-RRU Connection via CPRI
Sector RRH Configuration (Band/Channel Bandwidth)
From this connector on DU channel card To this connector on RRH
1 (α) 2.6 GHz/20 MHz L0 on card in slot 1 Optic 0
2 (β) 2.6 GHz/20 MHz L1 on card in slot 1 Optic 0
3 (γ) 2.6 GHz/20 MHz L2 on card in slot 1 Optic 0
2.5Gbps/path
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Configure Environment Variables
• LTE CDU Debug connection • Configure Environment Variables
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LTE CDU Interface
Main card plays role as main processor, GPS signal receiver and distributor, and as a network interface. It is responsible for communication path configuration between UE and EPC, Ethernet Switching functionality for internal Samsung MBS, and System OAM. Also, it manages entire hardware and software statuses within the Samsung MBS, allocates/manages resources, and collect/report the alarm status information to LSM (LTE System Manager)
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LTE CDU Debug Cable (Connecting to Main Card)
The main card manages the status of all hardware and software in the eNB and reports status information to the LSM in addition, the main card allocates and manages the resources of the eNB. Connection directly to the main card is possible via a Laptop or PC using a debugging cable (DB-9 to USB cable). Connect one end of the debugging cable to PC and the other end to the DBG port of the main card of CDU maintenance window as shown in the figure below.
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LTE CDU Debug Cable (Connecting to Main Card)
Serial Port
DBG Port
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LTE CDU LAN Cable (Connecting to Main Card)
LAN Port
EDBG port
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Configure Environment Variables
▪ BOOTPORT Definition: Backhaul interface number which will be used when the PKG is loading. Set Value: BOOTPORT = PORT_0_0_0 or BOOTPORT = PORT_0_0_1 ▪ BOOTMODE Definition: Setting for using the IP address which is input by a user, or using the IP address acquired from a DHCP server, when the PKG is loading. Set Value: static or dhcp ▪ PORT_0_0_0_IPV4_IP Definition: eNB IP address which will be used when PKG is loading (ex. 10.10.10.76). For PORT_0_0_#_IPV4_IP, # refers BOOTPORT value. When BOOTPORT = PORT_0_0_1, set IP address at PORT_0_0_1_IPV4_IP. Set Value: System IP Address ▪ PORT_0_0_0_IPV4_NM Definition: Prefix Length for the eNB IP address. (ex. 24). For PORT_0_0_#_IPV4_NM, # refers BOOTPORT value. When BOOTPORT = PORT_0_0_1, set prefix length at PORT_0_0_1_IPV4_NM. Set Value: Prefix Length
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Configure Environment Variables
▪ PORT_0_0_0_IPV4_GW Definition: Gateway IP address located between LSM and eNB (ex. 10.10.10.1). For PORT_0_0_#_IPV4_GW, # refers BOOTPORT value. When BOOTPORT = PORT_0_0_1, set IP address at PORT_0_0_1_IPV4_GW. Set Value: Gateway IP Address ▪ RS_IP Definition: LSM IP address (ex. 10.10.10.1) Set Value: LSM IP Address ▪ NE_ID Definition: eNB ID (ex. 100) Set Value: 1~1048575 ▪ __BOOTUP_FLAG__ Definition: Kernel and RFS selection identifier (ex. 000000020e) Set Value: Default value = Must use the value, 000000020e.
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Configure Environment Variables
▪ PORT_0_0_0_VLANID Definition: VLAN ID when PKG is loading, if it uses VLAN. For PORT_0_0_#_VLANID, # refers BOOTPORT value. When BOOTPORT = PORT_0_0_1, set VLAN ID at PORT_0_0_1_VLANID. Set Value: 1~4094 ▪ AUTH Definition: Setting for receiving acknowledge response from the LSM. Set Value: yes (receive acknowledge response) or no (booting as standalone mode), Default = yes ▪ REG_TIMEOUT Definition: Setting for local loading after reg_timeout value(minute). Set Value: Minute
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Configure Environment Variables
root@UAMA-T:/root> getenv -a [Env Information] AUTH=yes BOOTMODE=static BOOTPORT=PORT_0_0_0 PORT_0_0_0_IPV4_IP=10.176.75.4 PORT_0_0_0_IPV4_GW=10.176.75.1 PORT_0_0_0_IPV4_NM=27 PORT_0_0_0_VLANID=1901 RS_IP=10.181.33.228 NE_ID=524514 __BOOTUP_FLAG__=000000020e REG_TIMEOUT=1 root@UAMA-T:/root>
Display Current Environment Variables
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Configure Environment Variables
root@UAMA-T:/root> setenv –p BOOTPORT PORT_0_0_0 root@UAMA-T:/root> setenv –p BOOTMODE static root@UAMA-T:/root> setenv –p PORT_0_0_0_IPV4_IP 100.1.1.202 root@UAMA-T:/root> setenv –p PORT_0_0_0_IPV4_NM 24 root@UAMA-T:/root> setenv –p PORT_0_0_0_IPV4_GW 100.1.1.1 root@UAMA-T:/root> setenv –p NE_ID 202 root@UAMA-T:/root> setenv –p RS_IP 100.1.1.238 root@UAMA-T:/root> setenv –p REG_TIMEOUT 1 root@UAMA-T:/root> setenv –p PORT_0_0_0_VLANID 1234 * delenv –p RS_IP : delete environment variables
Environment Variable Configuration
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Grow eNB
• Creating eNB from LSM • Verify Software/Firmware version • Check Software/Firmware version • Firmware upgrade • eNB/Cell Unlock • NTP Configuration
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WEB EMS
WEB EMS UI example
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Creating eNB from LSM
Creating Network from Tree Viewer
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Creating eNB from LSM
Grow eNB
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Creating eNB from LSM
Grow eNB
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Creating eNB from LSM
Loading Trap
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Verify Software/Firmware version
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Verify Software/Firmware version
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Verify Software/Firmware version
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Verify Software/Firmware version
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Software Firmware version check
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Firmware version check
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LTE CDU Software upgrade
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LTE CDU Firmware upgrade
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LTE CDU Firmware upgrade by manual
Version check for UAMA/L9CA board
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LTE CDU Firmware upgrade by manual
FTP download for UAMA firmware files
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LTE CDU Firmware upgrade by manual
FTP download for L9CA firmware files - 1
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LTE CDU Firmware upgrade by manual
FTP download for L9CA firmware files - 2
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LTE CDU Firmware upgrade by manual
UAMA Firmware fusing • Stop the auto reboot function using below command on UAMA board and then execute fusing
root@UAMA-T:/ root > killall rswm
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LTE CDU Firmware upgrade by manual
L9CA Firmware fusing
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LTE CDU Firmware upgrade by manual
Upgrade check on UAMA board and reboot
Upgrade check on UAMA board and reboot
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eNB/Cell Unlock
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eNB/Cell Unlock
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NTP Configuration
Retrieve NTP server configuration
Change NTP server configuration
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System Normal Operation Verification
• Alarm Status • Cell Status • RRH Status • TEST-TXPWR
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System Normal Operation Verification
Retrieve Active Alarms • Using the command ‘RTRV-ALM-LIST’, don’t have to be no alarms as followings.
- MME Communication Failure
- RRU Communication Failure (with connected RRU)
- CPRI Failure (on the port connected RRU)
- GPS Function Failure
- Clock Failure
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System Normal Operation Verification
Retrieve Cell Status • Using the command ‘RTRV-CELL-STS’, OPERNATIONAL STATE has to be ‘enabled’.
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System Normal Operation Verification
Retrieve RRH Status • Using the command ‘RTRV-RRH-STS’, OPERNATIONAL STATE has to be ‘enabled’ and
RF Power value is proper.
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System Normal Operation Verification
TEST-TXPWR • Using the command ‘TEST-TXPWR’, check RF Power value is proper.
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OAM and Signal IP Seperation
• Vlan setting • IP address setting • Static route setting • SCTP Multi-Homing setting • Example
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eNB VLAN Settings
Retrieve VLAN configuration
Create VLAN Interface
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eNB IP Address Settings
Retrieve IP address configuration
Change IP address Interface
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Static Route Configuration
Retrieve current IP route configuration
Create Static route
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SCTP Multi-Homing Configuration
Retrieve MME configuration
Add Secondary MME
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IP Configuration example
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IP Configuration example
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Configure Neighbor List
• Add/Change/Delete NBR • Check NBR List
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Configure Neighbor List
Add/Change/Delete NBR • Neighbor list has to be set to conduct handover between eNBs or cells
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Configure Neighbor List
Check NBR List
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Commissioning • Attach • Throughput Test (Peak DL) • Handover Test
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Attach
This test verifies that the UE registered as a subscriber in the LTE network is able to complete the attach procedure.
Pre-requisite 1) LTE network system (eNB/EPC/HSS) configured properly 2) UE required to be set & subscribed in LTE network properly Test Process 1) Make sure the subscriber has been subscribed 2) Set the eNB under test work with required PCIs and every cell works normally 3) Locate the UE at a good RF condition within a test cell. 4) Power on the UE connected with monitor tool. 5) After the UE camps on the cell, initiate UE attach procedure. 6) Catch log file with the UE monitor tool. 7) Verify the UE attach procedure is successfully completed.
Expected Result 1) Successful UE attach procedure
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Attach
UE eNB MME
Random Access Preamble
Random Access Response
RRC Connection Request
RRC Connection Setup
RRC Connection Setup Complete(Attach Request)
INITIAL UE MESSAGE(Attach Request)
Authentication and NAS related procedure
INITIAL CONTEXT SETUP REQUEST(Attach Accept)
Security Mode Command
Security Mode Complete
RRC Connection Reconfiguration(Attach Accept)
RRC Connection Reconfiguration Complete INITIAL CONTEXT SETUP RESPONSE
UL Information Transfer(Attach Complete) UL NAS Transport
(Attach Complete)
S-GWEPC
Create Default Bearer Request
Create Default Response
Update Bearer Request
Update Bearer Response
UE Capability Enquiry
UECapabilityInformation
UE CAPABILITY INFO INDICATION
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Attach
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Throughput Test (Peak DL)
The target of this test is to measure the peak DL data throughput with single stationary end user equipment in favorable SINR locations.
Pre-requisite 1) A laptop computer to monitor the UE and DM tool for UE 2) G- bit Ethernet backhaul resource is assumed. 3) UDP server at eNB side and UDP client at UE side are required. 4) UDP server should be able to afford over 150 Mbps throughput. Test Process 1) Locate a test UE and laptop where DL SINR > 28 dB (Area in the trial network providing reproducible maximum data rates.) 2) Connect the UE to eNB (Call setup the UE.) 3) Run UDP client at the server. 4) Generate downlink UDP traffic and observe the single UE downlink throughput.
Expected Result 1) Meet the throughput criteria
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Throughput Test (Peak DL)
Single UE (DL UDP) – Category #3 UE
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Throughput Test (Peak DL)
Multi UE (DL UDP) – Category #3 UE
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Handover Test
This test is verify basic mobility between Samsung LTE system
Pre-requisite 1) LTE network system (eNB/EPC/HSS) configured properly. 2) UE set & subscribed in LTE network properly. Test Process 1) Set up two cells from each eNB 2) Check neighbor configuration of each eNB (X2 Setup) 3) Attach the UE at first cell. 4) Send continuous ping from UE side to application server. 5) Decrease downlink signal power of source cell and increase target cell. 6) Repeat step ‘5’ with other direction. Expected Result 1) Successful X2 handover
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Handover Test
Test Configuration
PC UE
Divider
Variable attenuator Attenuator
Variable attenuator Attenuator
eNB Cell 1
eNB Cell 2
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Handover Test
UE Source eNB
MeasurementReport
HANDOVER REQUEST
Target eNB MME
HO Decision
Admission Control
HANDOVER REQUESTACKNOWLEDGE
RRC ConnectionReconfiguration(HO Command)
Random Access Preamble
Random Access Response
RRC Connection Reconfiguration Complete(HO Confirm)
SN STATUS TRANSFER
PATH SWITCH REQUEST
PATH SWITCH REQUEST
ACKNOWLEDGE
UE CONTEXT RELEASE
End Marker
Data forwarding
Data forwarding
End Marker
Data Buffering and transmit to target
Buffer packets from Source
Packet DataPacket data
Packet dataPacket data
Release Reources
Downlink Data
Uplink Data
S-GW
User Plane Update Request
User Plane Update Response
EPC
Uplink Data
Downlink Data
Forwarded Downlink Data
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Copyright and Confidentiality
Copyright © 2013 © SAMSUNG Electronics Co., Ltd. SAMSUNG Electronics reserves the right to make changes to the specifications
of the products detailed in this document at any time without notice and obligation to notify any person of such changes.
Information in this document is proprietary to SAMSUNG Electronics Co., Ltd. No information contained here may be copied,
translated, transcribed or duplicated by any form without the prior written consent of SAMSUNG Electronics.