Chap.1 LTE Installation and Commissioning_20130813

September 29, 2017 | Author: Néstor Pérez | Category: Ip Address, Personal Computers, Lte (Telecommunication), Hertz, Local Area Network
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Description

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 ~ 50C

Operating Humidity

5 ~ 90%

Power Supply

- 48VDC

Installation

19” Rack mountable 3/60

Specification – eNodeB HW Overview Channel Card Main Card

Item

Main Card

Channel Card

DU Shelf

Description - 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 - 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

- Fan module - Dust filter module - Power distribution module 4/60

External Interfaces from DU

CPU State LED Board Reset

RRU Cable (Optic Cable-2.5Gbps) SW debug (2EA)

Power cable CPU UDA Reset SW debug LED

Rectifier

UDE (2EA)

GPS input

SW debug Rectifier IF

Analog 10MHz 1pps

Optic Back-haul (2EA) 10G Optic Back-haul (2EA) (reserved)

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Specification – Ports of eNodeB

Interface ACT GPS RST DBG CLK0, CLK1 UDA UDE0, UDE1 EDBG REC BH0, BH1 BH2, BH3 BH2, BH3 (LED) 1PPS A10M GPS DBG0, DBG1 L0~6

Connector Type USB Mini Champ RJ-45 RJ-45 RJ-45 SFP SFP+ SMA SMA SMA USB SFP

Description CPU Active LED GPS Status LED Board Reset SW Debug (UART, RS-232) CLOCK IN, OUT User Defined Alarm (Rx: 9 port, Tx: 2 port) User Defined Ethernet (10/100/1000 Base-T) SW Debug(10/100/1000 Base-T) Rectifier (RS-485) 1000 Base-LX/SX 10GE(Optional*) 10GE, SFP+ Status LED Reference Clock Out (1PPS) Reference Clock Out (Analog 10 MHz) GPS input UART CPU, DSP Debug CPRI optic (RRU interface) 6/60

Specification - Remote Radio Unit Items Technology

Description LTE [Band 7]

Operating Frequency

DL : 2620 ~ 2690MHz

UL : 2500 ~ 2570MHz Capacity

20MHz 1Carrier

RF Power

40W per path, total 80W

RF Chain

2T2R

Power consumption Dimension (W x D x H) Weight

Input Power

440W (100 % load ) 333W (50% load ) 280 x 143 x 489mm, 19.6L 15kg

- 48 VDC

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DU-RRU Connection via CPRI

2.5Gbps/path

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

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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 14/60

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  Display Current Environment Variables [email protected]:/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 [email protected]:/root>

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Configure Environment Variables  Environment Variable Configuration [email protected]:/root> [email protected]:/root> [email protected]:/root> [email protected]:/root> [email protected]:/root> [email protected]:/root> [email protected]:/root> [email protected]:/root> [email protected]:/root>

setenv setenv setenv setenv setenv setenv setenv setenv setenv

–p –p –p –p –p –p –p –p –p

BOOTPORT PORT_0_0_0 BOOTMODE static PORT_0_0_0_IPV4_IP 100.1.1.202 PORT_0_0_0_IPV4_NM 24 PORT_0_0_0_IPV4_GW 100.1.1.1 NE_ID 202 RS_IP 100.1.1.238 REG_TIMEOUT 1 PORT_0_0_0_VLANID 1234

* delenv –p RS_IP : delete environment variables

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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

[email protected]:/ 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

EPC

S-GW

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

UE Capability Enquiry

INITIAL CONTEXT SETUP REQUEST (Attach Accept)

Create Default Bearer Request

Create Default Response

UECapabilityInformation UE CAPABILITY INFO INDICATION Security Mode Command Security Mode Complete RRC Connection Reconfiguration (Attach Accept) RRC Connection Reconfiguration Complete UL Information Transfer (Attach Complete)

INITIAL CONTEXT SETUP RESPONSE

UL NAS Transport (Attach Complete)

Update Bearer Request Update Bearer Response

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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 62/60

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 Divider

PC

UE

Variable attenuator

Attenuator

Variable attenuator

Attenuator

eNB Cell 1

eNB Cell 2

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Handover Test UE

Source eNB

Target eNB

Packet data

EPC

MME

S-GW

Packet data

Measurement Report HO Decision HANDOVER REQUEST Admission Control HANDOVER REQUEST ACKNOWLEDGE Data Buffering and transmit to target RRC Connection Reconfiguration (HO Command)

SN STATUS TRANSFER Data forwarding Buffer packets from Source

Random Access Preamble Random Access Response RRC Connection Reconfiguration Complete (HO Confirm) Forwarded Downlink Data Uplink Data

Uplink Data PATH SWITCH REQUEST

User Plane Update Request

End Marker User Plane Update Response Downlink Data

Downlink Data

Data forwarding

PATH SWITCH REQUEST ACKNOWLEDGE

End Marker UE CONTEXT RELEASE Release Reources Packet data

Packet 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.

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