Qucell SC-220 User manual

Qucell 4G/LTE
Small Cell
CBRS Small Cell (HeNB) Manual
(Model: SC-220)
Caution
Please read cautions in this manual carefully
before handling Qucell HeNB.
Please keep this operation manual carefully to be accessible any time when you need
Figures in this manual are just examples. It may be different from real images.

Contents
1. Application Range ........................................................................................................................................ 5
1.1. References................................................................................................................................................................ 5
1.2. Revision History..................................................................................................................................................... 5
1.3. Copyright.................................................................................................................................................................. 5
2. LTE Small Cell System Summary................................................................................................................ 6
2.1. What is a Small Cell?........................................................................................................................................... 6
2.2. Types of Small Cell............................................................................................................................................... 6
2.3. Features of LTE Small Cell ................................................................................................................................. 8
2.4. System Summary .................................................................................................................................................. 9
2.5. LTE Small Cell Network Configuration.......................................................................................................10
3. Small Cell System .......................................................................................................................................11
3.1. Appearance of Small Cell ................................................................................................................................11
3.2. Small Cell Installation Method ......................................................................................................................13
3.3. System Configuration........................................................................................................................................14
3.4. Standards and Interface...................................................................................................................................14
3.5. Support Service ...................................................................................................................................................18
3.6. Synchronization ...................................................................................................................................................18
3.7. Handover................................................................................................................................................................18
3.8. Scheduling .............................................................................................................................................................20
3.9. ANR (Automatic Neighbor Relation) ..........................................................................................................20
3.10. CBRS (Citizen Broadcast Radio Service) ....................................................................................................20
3.10.1. CBSD (Citizen Broadcast Radio Service Device) ...........................................................................20
3.10.2. Domain Proxy..............................................................................................................................................22
4. Product Specification.................................................................................................................................23
5. Web Terminal ..............................................................................................................................................24
5.1. Operator UI ...........................................................................................................................................................24

5.2. Layout......................................................................................................................................................................24
5.2.1. Architecture of Menu...............................................................................................................................24
5.2.2. Actual View..................................................................................................................................................25
5.3. How to Access......................................................................................................................................................25
5.3.1. Access via Web Browser.........................................................................................................................25
5.3.2. Login...............................................................................................................................................................25
5.3.3. Password .......................................................................................................................................................26
5.3.4. Logout............................................................................................................................................................27
5.4. How to Use............................................................................................................................................................27
5.4.1. Parameter Setting......................................................................................................................................27
5.4.2. Reboot ...........................................................................................................................................................28
5.4.3. Factory Reset...............................................................................................................................................30
5.4.4. Log Download ............................................................................................................................................30
6. CLI.................................................................................................................................................................. 33
6.1. Data Model Configuration..............................................................................................................................33
6.2. HeNB Status Check ............................................................................................................................................34
7. Firmware Update ...........................................................................................................................................35
7.1 Firmware Update Procedure...........................................................................................................................35
8. LED Operation ................................................................................................................................................ 37
8.1 LED Operation Description and Scenario.................................................................................................37

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1. Application Range
This document describes feature, function and structure of 『LTE Small Cell (HeNB)』(abbreviate to
“Small Cell”)
1.1. References
-This document consists of information for the supported software and Small Cell for Small Cell
users.
1.2. Revision History
Revision history of this document, please refer to the table below.
Version
Date
Editor
Changes
0.0.1
2019-04-11
Qucell DEV
Initial draft
1.3. Copyright
© 2019 by Qucell. All rights reserved
Any unauthorized reproducing, distributing, or editing will constitute an infringement of copyright

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2. LTE Small Cell System Summary
LTE Small Cell(HeNB) is wireless network system which supports 3GPP LTE (Long Term Evolution)(3GPP
LTE is abbreviated as “LTE”hereafter) service. LTE Small Cell can be a cost effective solution for both
installation and operation with performance as a Macro cell and internet security. LTE Small Cell can
provide the service through Backhaul connection which have already been installed or can be
provided at low cost regardless of time and place.
2.1. What is a Small Cell?
Small cells are low-powered radio node(10~hudreds meters) and it means small base station(eNodeB)
including Femtocell, Picocell, Metrocell and Microcell. Small cell is low-power wireless AP(Access Point)
which connects terminal with mobile wireless network using fixed wideband internet connection. And
it provides improved cellular coverage, and capacity of mobile communication services. (Source: Small
Cell Forum - http://www.smallcellforum.org )
Figure 1. Use of Small Cell (Source: Small Cell Forum)
2.2. Types of Small Cell
Femtocell
Femtocell is a small, low-power cellular base station. It was designed for use in home or small
business areas. A broader term which is more widespread in the industry is small cell, with femtocell
as a subset. Main features of Femtocell are IP backhaul, Self-optimization, low-power, easy to install
and etc. Small Cell of Femtocell type can be classified to two types as follows:

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1. Residential Small Cell: used at home
2. Enterprise Small Cell: used for enterprise/in-building, smaller than Picocell
Picocell
Picocell is a low-power power compact base station that covers small area, such as office and part
of a building. Sometimes, it includes Small Cells used at outdoors.
The necessity of expert knowledge is minimized because of self-optimizing function of the Small Cell
technology,
But it is necessary to pay attention to the selection of the number and location of the device to be
installed in the room.
Metrocell
Metrocell means Small Cell which is used to provide large capacity in downtown area. It is usually
mounted on wall, lamppost and CCTV, positioned on the street structure. Sometimes, Femtocell,
Picocell, Microcell are included in Metrocell.
Microcell
Because of inefficient Macro coverage, Microcell, the base station which covers small outdoor area,
is used for extending coverage for in/outdoor users. Sometimes, Microcell is installed at indoors and
used to provide more capacity and coverage than Picocell.

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Figure 2. Types of Small Cell (Source: Small Cell forum)
2.3. Features of LTE Small Cell
LTE services support data service except multimedia on user handset. To satisfy user’s needs, it is
necessary to provide high-speed but low-cost packet transmission service.
LTE Small Cell Features are as follows:
1. Data Traffic dispersion effect: Because LTE Small Cell can use existing Internet/PSTN
2. Coverage expansion effect: LTE Small Cell can cover shadow area such as in-building area.
Introduction and Utilization of Small Cell could be new revenue model to mobile operator because
it can support Low-cost but high-efficiency convergence service infra.

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Figure 3. Features of LTE Small Cell
2.4. System Summary
LTE Small Cell provides a high-speed data service adopting downlink OFDMA (Orthogonal Frequency
Division Multiple Access) transmission technique, uplink SC (Single Carrier) FDMA transmission
technique and various Spectrum allocations with supporting scalable bandwidth. LTE Small Cell
contains LTE service function in SoC and thus it is possible to compose system simply with low cost.
For high-efficiency, the inner hardware accelerator of SoC is utilized and main function is realized
in the form of software from the Multi Core processor inside SoC, providing diverse and flexible
services.
Qucell LTE Small Cell Includes feature for deactivating radiation of signal from the device when
failure/malfunction is detected via connected electronic communication circuit equipment.
Qucell LTE Small Cell Includes feature for deactivating radiation of signal, automatically from the
device, when communication between the device and the connected electronic communication
circuit equipment is fails.

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2.5. LTE Small Cell Network Configuration
LTE Small Cell is also called HeNB(Home evolved UTRAN Node B), it serves Wireless connection
function with UE to process Packet by LTE Air Standards between UE(User Equipment) and EPC. LTE
Small Cell serves HeNB function interworking with HeNB GW(Gateway), HeMS(HeNB Management
System) Server.
Small Cell is connected with HeNB GW and ready to serve Services by communicating with MME.
Process of Small Cell setting, management, alarm, statistics and etc. is dealt with through HeMS
Server which has connection with Small Cell through IP network.
Figure 4. Connection diagram for LTE Small Cell and EPC

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Figure 5. E-UTRAN Small Cell network configuration diagram
3. Small Cell System
3.1. Appearance of Small Cell
Small Cell H/W size is 305 x 305 x 80 (mm). There are 3 LED indicators on the back side. LED functions
are like below.
1. Power/GPS
2. Internet
3. Service
The LTE antenna is located inside the Small cell H/W. One GPS Port is located on top view. Two LAN
port are located on bottom view.

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Figure 6. Small Cell H/W picture

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3.2. Small Cell Installation Method
Small Cell H/W support two mount options that Pole mount, Wall mount. For Pole mount option, it
needs a Horse clamp to fix main body.
1. Pole mount and Horse Clamp
Figure 7. Pole mounting
2. Wall mount
Figure 8. Wall mounting

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3.3. System Configuration
Operating system and LTE Protocol Stack operate by using Core Processor, DSP and Hardware
Accelerator inside of SoC. Small Cell is configured using SoC that acts as the main processor and LTE
HeNB. LTE Digital Signal flows from/to SoC and LTE signal is received and transmitted through RF
Transfer, Amp and Antenna. Power and network connection Interface interwork with SoC is configured
to interwork with Backhaul and SoC through network interface.
3.4. Standards and Interface
LTE Small Cell supports below standards which is related HeNB of 3GPP Rel 9/10.
Table 1. 3GPP Standards supported by LTE Small Cell
Number
Title
22.220
Service requirements for Home Node B (HNB) and Home eNode B (HeNB)
23.830
Architecture aspects of Home Node B (HNB) / Home enhanced Node B (HeNB)
23.832
IMS aspects of architecture for Home Node B (HNB)
25.367
Mobility procedures for Home Node B (HNB); Overall description; Stage 2
25.467
UTRAN architecture for 3G Home Node B (HNB); Stage 2
25.469
UTRAN Iuh interface Home Node B (HNB) Application Part (HNBAP) signalling
25.820
3G Home Node B (HNB) study item Technical Report
25.967
Home Node B (HNB) RF Requirements
32.581
Telecommunications management; Home Node B (HNB) Operations,
Administration, Maintenance and Provisioning (OAM&P); Concepts and
requirements for Type 1 interface HNB to HNB Management System (HMS)
32.582
Telecommunications management; Home Node B (HNB) Operations,
Administration, Maintenance and Provisioning (OAM&P); Information model for

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Type 1 interface HNB to HNB Management System (HMS)
32.583
Telecommunications management; Home Node B (HNB) Operations,
Administration, Maintenance and Provisioning (OAM&P); Procedure flows for
Type 1 interface HNB to HNB Management System (HMS)
32.821
Telecommunication management; Study of Self-Organizing Networks (SON)
related OAM Interfaces for Home Node B (HNB)
33.820
Security of Home Node B (HNB) / Home evolved Node B (HeNB)
33.320
Security of Home Node B (HNB) / Home evolved Node B (HeNB)
32.591
Telecommunication management; Home enhanced Node B (HeNB) Operations,
Administration, Maintenance and Provisioning (OAM&P); Concepts and
requirements for Type 1 interface HeNB to HeNB Management System (HeMS)
32.592
Telecommunication management; Home enhanced Node B (HeNB) Operations,
Administration, Maintenance and Provisioning (OAM&P); Information model for
Type 1 interface HeNB to HeNB Management System (HeMS)
32.593
Telecommunication management; Home enhanced Node B (HeNB) Operations,
Administration, Maintenance and Provisioning (OAM&P); Procedure flows for
Type 1 interface HeNB to HeNB Management System (HeMS)
32.453
Telecommunication management; Performance Management (PM); Performance
measurements Home enhanced Node B (HeNB) Subsystem (HeNS)
33.401
3GPP System Architecture Evolution (SAE); Security architecture
32.571
Telecommunication management; Home Node B (HNB) and Home eNode B
(HeNB) management; Type 2 interface concepts and requirements
32.572
Telecommunication management; Home Node B (HNB) and Home eNode B
(HeNB) management; Type 2 interface models and mapping functions
23.402
UMTS; LTE; Architecture Enhancements for Non 3GPP access
24.301
UMTS; LTE; Non Access Stratum Protocol for Evolved Packet System
25.913
Requirements for E-UTRA and E-UTRAN

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36.101
User Equipment (UE) radio transmission and reception
36.201
LTE; E-UTRAN; LTE Physical Layer; General Description
36.211
Physical Channels and Modulation
36.212
Multiplexing and Channel Coding
36.213
Physical Layer Procedures
36.300
E-UTRAN Overall Description
36.306
User Equipment (UE) radio access capabilities
36.321
E-UTRA Medium Access Control Protocol (MAC) Specification
36.322
E-UTRA Radio Link Control (RLC) Protocol Specification
36.323
E-UTRA Packet Data Convergence Protocol (PDCP) Specification
36.331
E-UTRAN Radio Resource Control (RRC) Protocol Specification
36.413
E-UTRA S1 Application Protocol (S1AP)
36.423
E-UTRAN X2 Application Protocol
Satisfying the structure defined in 3GPP TS36.300, LTE Small Cell provides standards specific
interfaces. It supports S1-U and S1-MME interface defined in TS29.281 and TS36.413 for the
interworking of Small Cell, HeNB GW or EPC. HeNB GW added Network structure is as follows.

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UE
S1-MME
S1-U
LTE-Uu
S1-MME
S11
HSS
S6a
HeNB
HeNB
GW
S-GW
MME
CSG
List Srv
C1
(OMA DM /OTA)
VPLMN
HPLMN
Figure 9. LTE Small Cell(HeNB) and HeNB GW, EPC Interface
LTE Small Cell can be used to connect directly to the EPC as following figure without going through
HeNB GW and it also supports S1-U, S1-MME interface defined in TS29.281 and TS36.413.
UE
HeNB
MME
S-GW
LTE-Uu
S1-MME
S1-U
S11
HSS
S6a
CSG
List Srv
C1
(OMA DM /OTA)
VPLMN
HPLMN
Figure 10. LTE Small Cell(HeNB) and EPC Interface (S1-U, S1-MME)

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3.5. Support Service
LTE Small Cell supports below services.
Data Call Service
SMS, MMS Service
Voice Call Service (VoLTE)
3.6. Synchronization
LTE Small Cell supports synchronization using GPS, PTP/NTP and NL.
3.7. Handover
Small Cell supports S1/X2 based handover defined in 3GPP TS 36.331, TS 36.413 and TS 36.413. The
following figures show the handover procedures.

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UE Source
eNB
HeNB
GW
Target
eNB
S1AP Handover Required
S1AP Handover Request
S1AP Handover Request Acknowledge
S1AP Handover Command
RRC Connection Reconfiguration
S1AP eNB Status Transfer
S1AP MME Status Transfer
S1AP Handover Notify
S1AP UE Context Release Command
S1AP UE Context Release Complete
Handover Preparation Stage
Handover Execution Stage
Handover Completion Stage
Figure 11. S1 Handover Procedures
UE Source
eNB MME
Target
eNB
Handover Preparation Stage
X2AP Handover Request
X2AP Handover Ack
RRC Connection Reconfiguration
X2AP SN Status Transfer
S1AP Path Switch Request
S1AP Path Switch Ack
X2AP UE Context Release
Handover Execution Stage
Handover Execution Stage
Figure 12. X2 Handover Procedures

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3.8. Scheduling
Small Cell supports QoS scheduling (conforming to QCI priority, GBR and MBR for GBR bearer, UE-
AMBR for Non-GBR bearer) and PF (Proportional fairness) scheduling for Non-GBR bearer.
3.9. ANR (Automatic Neighbor Relation)
Small Cell can automatically update for neighbor cell’s information such as Physical Cell ID, Cell
Global ID, Tracking Area Code and etc. Neighbor cell information obtained through ANR can be used
for handover and HeMS management
Small Cell supports 3 kinds of ANR methods
- NL (Network Listening) based ANR
- UE based ANR
- X2 based ANR
3.10. CBRS (Citizen Broadcast Radio Service)
3.10.1. CBSD (Citizen Broadcast Radio Service Device)
Small Cell supports CBSD –SAS (Spectrum Access System) protocol in CBRS. CBSD function in Small
Cell complies with WINNF CBRS standards and supports multiple grants to activate one or more cells.
The small cell device acts as CBSD in CBRS. In order to start service, CBSD needs grant(s) allocated
from SAS. One grant consists of information related to channel configuration, e.g. bandwidth, max
EIRP (Effective Isotropic Radiated Power). After stored Grants, CBSD should set configuration following
grant information. Following figure describes small cell network diagram with CBRS.