Samsung SLS 2A10002100 User Manual

FCC ID : A3LSLS-2A10002100

ATTACHMENT E.

- USER MANUAL -

HCT CO., LTD.

SAN 136-1, AMI-RI, BUBAL-EUP, ICHEON-SI, KYOUNGKI-DO, 467-701, KOREA

TEL:+82 31 639 8517 FAX:+82 31 639 8525 www.hct.co.kr

Report No. : HCTR1006FR19-1 1/1

Ed. 00

MetroPCS

User Manual

This manual is proprietary to SAMSUNG Electronics Co., Ltd. and is protected by copyright. No information contained herein may be copied, translated, transcribed or duplicated for any commercial purposes or disclosed to the third party in any form without the prior written consent of SAMSUNG Electronics Co., Ltd.

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INTRODUCTION

Purpose

This document introduces evolved NodeB (eNB) system of the Samsung Electronics and describes its architecture and functions.

Document Content and Organization

MetroPCS User Manual

This document consists of five Chapters, Abbreviation.

CHAPTER 1. Overview of LTE Network

 Introduction to LTE Network  Interface between Systems

CHAPTER 2. Overview of LTE eNB

 Introduction to LTE eNB  Main Functions  Specifications

CHAPTER 3. System Architecture

 Hardware Structure  Software Structure

CHAPTER 4. Message Flow

 Attach Procedure  Service Request Procedure  Detach Procedure  Intra E-UTRAN Handover Procedure  Network Synchronization Signal Flow

INTRODUCTION

 Alarm and Reset Signal Flow  Loading Flow  Operation and Maintenance Signal Flow

CHAPTER 5. Additional Functions and Tools

Command Line Interface (CLI)

ABBREVIATION

Describes the acronyms used in this description.

Revision History

EDITION DATE OF ISSUE REMARKS

00 03. 2010. First Edition

II © SAMSUNG Electronics Co., Ltd.

MetroPCS User Manual

TABLE OF CONTENTS

INTRODUCTION I

Purpose ..................................................................................................................................................I

Document Content and Organization.....................................................................................................I

Revision History.....................................................................................................................................II

CHAPTER 1. Overview of LTE Network 1-1

1.1 Introduction to LTE network................................................................................................. 1-1

1.2 Interface between Systems................................................................................................... 1-5

1.2.1 LTE Network Interface..........................................................................................................1-5

1.2.2 Inte rface pro tocol..................................................................................................................1-6

CHAPTER 2. Overview of LTE eNB 2-1

2.1 Introduction to LTE eNB........................................................................................................ 2-1

2.2 Main Functions ...................................................................................................................... 2-2

2.3 Specifications ........................................................................................................................ 2-4

CHAPTER 3. System Architecture 3-1

3.1 Hardware Structure................................................................................................................ 3-1

3.1.1 Digit al Unit (L9 DU)................................................................................................................3-2

3.1.2 Radio Unit.............................................................................................................................3-5

3.1.3 Cooling Archite cture..............................................................................................................3-8

3.1.4 Environmen t Sensors...........................................................................................................3-9

3.2 Software Structure............................................................................................................... 3-10

3.2.1 Operating Sy stem (OS )......................................................................................................3-10

3.2.2 Netw ork Processing Sof tw are (NP SW).............................................................................3-10

3.2.3 Device Driver (DD)..............................................................................................................3-11

3.2.4 Middlew are (MW) ................................................................................................................3-11

3.2.5 IP Rou ting Subsy stem ( IPRS)............................................................................................3-11

3.2.6 Call Pro cessing Sof tw are (CPS)........................................................................................3-11

3.2.7 Operation and Maintenance (OAM)...................................................................................3-13

TABLE OF CONTENTS

CHAPTER 4. Message Flow 4-1

4.1 Attach Procedure....................................................................................................................4-1

4.2 Service Request Procedure...................................................................................................4-5

4.3 Detach Procedure...................................................................................................................4-9

4.4 Intra E-UTRAN Handover Procedure ..................................................................................4-12

4.5 Network Synchronization Signal Flow................................................................................4-18

4.6 Alarm and Reset Signal Flow..............................................................................................4-19

4.7 Loading Flow........................................................................................................................4-20

4.8 Operation and Maintenance Signal Flow............................................................................4-21

CHAPTER 5. Additional Functions and Tools 5-1

ABBREVIATION I

3 ..................................................................................................................................................I

A ~ E ..................................................................................................................................................I

F ~ L ................................................................................................................................................. II

M ~ S ................................................................................................................................................III

T ~ W ......................................................................................................................... .......................IV

IV © SAMSUNG Electronics Co., Ltd.

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LIST OF FIGURES

Figure 1.1 LTE Network Configuration ................................................................................... 1-1

Figure 1.2 LTE Network Interface........................................................................................... 1-5

Figure 1.3 User plane protocol stack between eNB and UE................................................... 1-6

Figure 1.4 Control plane protocol stack between eNB and UE ............................................... 1-7

Figure 1.5 User plane protocol stack between eNB and S-GW.............................................. 1-7

Figure 1.6 Control plane protocol stack between eNB and MME ........................................... 1-8

Figure 1.7 User plane protocol stack between eNBs.............................................................. 1-8

Figure 1.8 Control plane protocol stack between eNBs.......................................................... 1-9

Figure 1.9 Protocol stack between eNB and LSM.................................................................. 1-9

Figure 1.10 Protocol stack between eNB and LSS............................................................... 1-10

Figure 3.1 Rack Configuration of Macro Outdoor Cabinet...................................................... 3-1

Figure 3.2 Internal Configuration of Macro Outdoor Cabinet.................................................. 3-2

Figure 3.3 RF Configuration for Antenna Sharing................................................................... 3-7

Figure 3.4 Configuration of FANs........................................................................................... 3-8

Figure 3.5 Configuration of Environment Sensors.................................................................. 3-9

Figure 3.6 Software Structure............................................................................................... 3-10

Figure 3.7 OAM Block .......................................................................................................... 3-13

Figure 4.1 Attach procedure................................................................................................... 4-2

Figure 4.2 UE triggered Service Request procedure.............................................................. 4-6

Figure 4.3 Network triggered Service Request procedure...................................................... 4-8

Figure 4.4 UE initiated Detach procedure............................................................................... 4-9

Figure 4.5 MME initiated Detach procedure..........................................................................4-11

Figure 4.6 X2 based handover procedure............................................................................ 4-12

Figure 4.7 S1 based handover procedure............................................................................ 4-15

Figure 4.8 DU Synchronization Signal Flow......................................................................... 4-18

Figure 4.9 RU Synchronization Signal Flow......................................................................... 4-18

Figure 4.10 Alarm and Reset Signal Flow............................................................................ 4-19

Figure 4.11 Loading Flow ..................................................................................................... 4-20

Figure 4.12 Operation/Maintenance Signal Flow.................................................................. 4-21

Figure 5.1 Connecting to the CLI............................................................................................ 5-1

TABLE OF CONTENTS

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VI © SAMSUNG Electronics Co., Ltd.

CHAPTER 1. Overview of LTE

Network

1.1 Introduction to LTE network

3GPP Long Term Evolution (LTE) network is composed of E-UTRAN NodeB (eNB), LTE System Manager (LSM) and Evolved Packet Core (EPC). LTE network is the subnet of Packet Data Network (PDN) and enables User Equipments (UE) to interwork with IP network. The following diagram shows the composition of 3GPP LTE network.

MetroPCS User Manual

Samsung Products Other Products

LSM-R

(LTE eNB)

LTE eNB

CDM

Network

BSC/PCF

EMS (1x Core)

MME

EPC

Network

WSS

WGW

PSTN

PDSN

Packet Data

Network

S-GW

LSM-C (EPC)

Figure 1.1 LTE Network Configuration

CHAPTER 1. Overview of LTE Network

Evolved UTRAN Node-B (eNB)

The eNB is located between the UE and EPC. It processes packet calls by connecting to the UE wirelessly according to the LTE Air standard. The eNB performs functionalities such as transmission and receipt of wireless signals, modulation and demodulation of packet traffic signals, packet scheduling for efficient utilization of wireless resources, Hybrid Automatic Repeat Request (HARQ)/ARQ processing, Packet Data Convergence Protocol (PDCP) for packet header compression, and wireless resources control. Moreover, it performs handover interoperating with the EPC.

Evolved Packet Core (EPC)

The EPC succeeds to the 3GPP Release 7 packet-switched core network and consists of Mobility Management Entity (MME), Serving GW (S-GW), and PDN GW (P-GW). The MME performs MS mobility management and session management, Mobile Station (MS) authentication, and HO control. The MME also processes the control plane through interoperation between eNB and MME, UE and MME, Serving General Packet Radio Service (GPRS) Support Node (SGSN) and MME, MME and MME, MME and SGW, MME, Home Subscriber Server (HSS) and Equipment Identity Register (EIR). The SGW/P-GW processes the user plane. It processes routing and forwarding the user data between the UE and the PDN network. The P-GW performs the gateway function to the PDN network, interoperation with non3GPP network, and address allocation for the UE.

Mobility Management Entity (MME)

The MME processes the control functions for the control plane, such as call connection control and mobility management, tracking area list management, bearer and session management by processing NAS signaling with the MS and S1 Application Protocol (S1AP) signaling with the eNB. The control functions for the control plane that the MME processes are given below.

 Non Access Stratum (NAS) signaling  NAS signaling security  Inter Core Network (CN) node signaling for mobility between 3GPP access networks  UE Reachability in ECM-IDLE state (including control and execution of paging

retransmission)

 Tracking Area list management  PDN GW and Serving GW selection  MME selection for handovers with MME change  SGSN selection for handovers to 2G or 3G/3GPP access networks  Roaming (S6a towards home HSS)  Authentication  Bearer management functions including dedicated bearer establishment  Lawful Interception

1-2 © SAMSUNG Electronics Co., Ltd.

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Serving Gateway (S-GW)

The S-GW performs the mobility anchor function within the LTE system and between LTE and 3GPP access system, and processes transmission of downlink/uplink packet data. The S-GW supports GPRS Tunneling Protocol (GTP) and Proxy Mobile IP (PMIP) protocols for signaling processing with MME, P-GW, and SGSN.

PDN Gateway (P-GW)

The P-GW allocates an IP address to UE and, for mobility between the LTE system and non-3GPP access system, provides the anchor function and the packet filtering function for each subscriber. In addition, it handles accounting and bearer policy in accordance with the policy interoperating with the Policy Charging & Rule Function (PCRF), and provides the accounting function, the transmission rate management and change functions that depend on the service level.

LTE System Manager (LSM)

The LSM provides the interface for the operator, and the software management, configuration management, performance management, and error management functions so that s/he can operate and maintain eNB/EPC. The LTE System Manager-Core (LSM-C) performs the operating management function for EPC (MME, S-GW, P-GW). The LTE System Manager-Radio (LSM-R) performs the operating management function for eNB, and also the SON server (LTE SON server, LSS) function.

Home Subscriber Server (HSS)

The HSS is a database management system that stores and manages the parameters and location information for all registered mobile subscribers. The HSS manages key data such as the mobile subscriber’s access capability, basic services and supplementary services, and provides a routing function to the subscribed receivers.

Policy Charging & Rule Function (PCRF)

The PCRF creates policy rules to dynamically apply the QoS and accounting policies differentiated by service flow, or creates the policy rules that can be applied commonly to multiple service flows. Since the IP edge contains the Policy and Charging Enforcement Function (PCEF), it can apply the policy rules transmitted from PCRF to each service flow.

Authorization, Authentication and Accounting (AAA)

The AAA is a system providing authentication and authorization functions to the packet data service subscribers. The AAA server also provides a billing function based on service usage.

Charging Gateway Functionality (CGF)

The accounting data generated from the PCEF is stored in the CGF and is provided for each subscriber.

CHAPTER 1. Overview of LTE Network

Online Charging System (OCS)

When a subscriber for whom online information is required makes a call, the PCEF sends and receives his accounting information in interoperation with the OCS.

Domain Name Service (DNS)

The DNS manages mapping between domain names and IP addresses. When an MS requests, it notifies the IP address of the requested domain.

Dynamic Host Configuration Protocol (DHCP)

The DHCP server is an auxiliary device for providing packet services. It manages and assigns IP addresses.

1-4 © SAMSUNG Electronics Co., Ltd.

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1.2 Interface between Systems

1.2.1 LTE Network Interface

The figure below shows LTE network interface.

PCRF OCS CGF

LSS LSM

SNMP/FTP/SOAP

FTP/ SOAP

SNMP/FTP/SOAP

eNB

Gx Gy Gz

TL1/FTP

EPC

socket

DHCP

AAA

S6b

HSS

S6a

SGi

DNS

Figure 1.2 LTE Network Interface

AAA: Authentication, Authorization and Accounting CGF: Charging Gateway Function DHCP: Dynamic Host Configuration Protocol DNS: Domain Name System eNB: E-UTRAN NodeB LSM: LTE System Manager EPC: Evolved Packet Core HSS: Home Subscriber Server OCS: Online Charging System PCRF: Policy and Charging Rule Function PDN: Packet Data Network UE: User Equipment FTP: File Transfer Protocol SOAP: Simple Object Access Protocol SNMP: Simple Network Management Protocol TL1: Transaction Language 1

LSM PDN

The interfaces between LTE system components are depicted below.

Interfaces Interface Specifications

UE/eNB - Physical Interface: LTE PHY OFDMA/SC-FDMA

- Interface protocol: LTE Uu Interface

eNB/EPC - Physical Interface: FE/GE

- Interface protocol: LTE S1 Interface (S1-MME, S1-U)

eNB/eNB - Physical Interface: FE/GE

- Interface protocol: LTE X2 Interface

eNB/LSM - Physical Interface: FE/GE

- Interface protocol: SNMP/FTP/SOAP

CHAPTER 1. Overview of LTE Network

Interfaces Interface Specifications

EPC/LSM - Physical Interface: FE/GE

- Interface protocol: TL1/FTP

eNB/LSS - Physical Interface: FE/GE

- Interface protocol: SNMP/FTP

LSS/LSM - Physical Interface: FE/GE

- Interface protocol: RMI/SOAP

EPC/PCRF - Physical Interface: FE/GE

- Interface protocol: Gx Interface

(Continued)

EPC/DHCP Server

- Physical Interface: FE/GE

- Interface protocol: socket communication

1.2.2 Interface protocol

These are interface protocols between components.

Interface between eNB and UE

This shows the user plane protocol stack for interface between eNB and UE.

PDCP

RLC

MAC

PHY

PDCP

RLC

MAC

PHY

eNB

Figure 1.3 User plane protocol stack between eNB and UE

The user plane protocol stack between eNB and UE is used for transmission of the IP packet, consisted of packet data convergence protocol (PDCP) sublayer, Radio Link Control (RLC) sublayer, Medium Access Control (MAC) sublayer and physical layer.

1-6 © SAMSUNG Electronics Co., Ltd.

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This shows the control plane protocol stack for interface between eNB and UE.

RRC RRC

PDCP

RLC

MAC

PHY

Figure 1.4 Control plane protocol st ac k betwee n eNB a nd UE

PDCP

RLC

MAC

PHY

eNB

The control plane protocol stack between eNB and UE is used for transmission the control signal, consisted of Radio Resource Control (RRC), PDCP sublayer, RLC sublayer, MAC sublayer and physical layer.

Interface between eNB and S-GW

This shows the user plane protocol stack for interface between eNB and Serving Gateway (S-GW).

User Plane

PDUs

GTP-U GTP-U

UDP

eNB

Figure 1.5 User plane protocol stack between eNB and S-GW

User Plane

PDUs

UDP

S-GW

The user plane protocol stack between eNB and S-GW is used for transmission of Protocol Data Unit (PDU)s of user plane, consisted of GPRS Tunneling Protocol - User (GTP-U), User Datagram Protocol (UDP), IP, L2 data link layer and L1 physical layer.

CHAPTER 1. Overview of LTE Network

Interface between eNB and MME

This shows the control plane protocol stack for interface between eNB Mobility Management Entity (MME).

S1-AP S1-AP

SCTP SCTP

eNB

MME

Figure 1.6 Control plane protocol st ac k betwee n eNB a nd MM E

The control plane protocol stack between eNB and MME is used for the signaling transmission for S1 interface, consisted of Stream Control Transmission Protocol (SCTP), IP, L2 data link layer and L1 physical layer.

Interface between eNB and eNB

This shows the user plane protocol stack for interface between eNBs.

User Plane

PDUs

User Plane

PDUs

GTP-U GTP-U

UDP

eNB

UDP

eNB

Figure 1.7 User plane protocol stack between eNBs

MetroPCS User Manual/ED.00

The user plane protocol stack between eNBs is used to transmit the user plane PDUs between eNBs, consisted of GTP-U, UDP, IP, L2 data link layer and L1 physical layer.

This shows the control plane protocol stack for interface between eNBs.

X2-AP X2-AP

SCTP SCTP

eNB

Figure 1.8 Control plane protocol st ac k betwee n eNBs

The control plane protocol stack between eNBs is used for transmission of control signal between eNBs, consisted of SCTP, IP, L2 data link layer and L1 physical lay er.

Interface between eNB and LSM

This shows the protocol stack for interface between eNB and LSM.

SOAP

HTTP

FTP/

SFTP

SNMP

SOAP

HTTP

FTP/

SFTP

SNMP

TCP

eNB

UDP

TCP

LSM

UDP

Figure 1.9 Protocol stack between eNB and LSM

CHAPTER 1. Overview of LTE Network

The protocol stack between eNB and LTE System Manager (LSM) is used for transmission of Simple Object Access Protocol (SOAP), File Transfer Protocol (FTP), Secure FTP (SFTP) and Simple Network Management Protocol (SNMP) using Hypertext Transfer Protocol (HTTP), consisted of TCP/UDP, IP, L2 data link layer and L1 physical layer.

Interface between eNB and LSS

This shows the protocol stack for interface between eNB and LSS (LTE SON Server).

SOAP

HTTP

TCP

FTP/

SFTP

eNB

SNMP

UDP

SOAP

HTTP

TCP

FTP/

SFTP

SNMP

UDP

LSM

Figure 1.10 Protocol stack between eNB and LSS

The protocol stack between eNB and LSS is used for transmission of SOAP, FTP, secure FTP and SNMP using HTTP, consisted of TCP/UDP, IP, L2 data link layer and L1 physical layer.

MetroPCS User Manual

CHAPTER 2. Overview of LTE eNB

2.1 Introduction to LTE eNB

The 3GPP LTE represents a major advance in cellular technology. LTE is designed to meet needs for high-speed data and media transport as well as high-capacity voice support.

The LTE encompasses high-speed data, multimedia unicast and multimedia broadcast services. The LTE PHY is a highly efficient means of conveying both data and control information between an enhanced eNB and mobile UE.

LTE has been set aggressive performance requirements that rely on physical layer technologies. These include Orthogonal Frequency Division Multiplexing (OFDM) and Multiple Input Multiple Output (MIMO) data transmission. In addition, the LTE PHY uses Orthogonal Frequency Division Multiple Access (OFDMA) on the downlink and Single Carrier - Frequency Division Multiple Access (SC-FDMA) on the uplink.

LTE eNB is controlled by EPC and connects LTE calls to UE. The LTE eNB interfaces with UE via a wireless channel observing the 3GPP LTE standard and provides high-speed data service and multimedia service in wireless broadband.

The LTE eNB provides the following functions: modulation/demodulation of packet traffic signal, scheduling and radio bandwidth allocation to manage air resources efficiently and ensure Quality of Service (QoS), connection control and set/hold/disconnect the packet call connection, handover control and EPC interface and system operation management function.

CHAPTER 2. Overview of LTE eNB

2.2 Main Functions

The major characteristics of the LTE system are listed below.

OFDMA Downlink Transmission

OFDMA is employed as the multiplexing scheme in the LTE downlink. OFDMA is used to transmit data to several users simultaneously by using the sub-carrier allocated to each user and transmit data by allocating one or more sub-carriers to a specific subscriber according to the channel status and the transmission rate requested by a user. In addition, since it can select the sub-carriers with excellent features for each subscriber and allocate them to the subscribers when some subscribers divide and use the whole subcarrier, it can raise the data throughput by distributing the resources efficiently.

SC-FDMA Uplink Transmission

In the uplink, SC-FDMA is selected to efficiently meet Evolved Universal Terrestrial Radio Access (E-UTRA) performance requirements. SC-FDMA has a low power amplifier derating (Cubic Metric/PAPR) requirement, thereby conserving battery life or extending range.

Downlink MIMO

For the LTE downlink, a 2 × 2 configuration for MIMO is assumed as baseline configuration, i.e., 2 transmit antennas at the base station and 2 receive antennas at the terminal side. Configurations with 4 antennas are also considered. It has to be differentiated between spatial multiplexing and transmit diversity, and it depends on the channel condition which scheme to select. Spatial multiplexing allows transmitting different streams of data simultaneously on the same downlink resource block (s). These data stream can belong to one single user (single user MIMO/SU-MIMO) or to different users (multi user MIMO/MU-MIMO). While SU-MIMO increases the data rate of one user, MU-MIMO allows increasing the overall capacity.

Uplink MIMO

Uplink MIMO schemes for LTE will differ from downlink MIMO schemes to take into account UE complexity issues. For the uplink, MU-MIMO can be used. Multiple UEs may transmit simultaneously on the same resource block. This is also referred to as Spatial Domain Multiple Access (SDMA). The scheme requires only one transmit antenna at UE side which is a big advantage.

MetroPCS User Manual/ED.00

Power Control

The LTE carries out the power control function for the uplink signal received from multiple UEs and then set the power intensity of the uplink signal to a specific level. The LTE transmits the power correction command to each UE and then makes the UE power intensity be the level required when the UE transmits the modulated uplink signal in a specific Quadrature Amplitude Modulation (QAM) modulation method.

LTE eNB is mainly composed of digital unit and radio unit to perform the advance technologies.

The main functions of digital unit are as follows.

 Subscriber data traffic processing  Call processing, resource allocation and OAM  GTP, PDCP, OAM, RRC, RRM processing  Reception of the GPS signal and creation and supply of the clock  Fault diagnosis and alarm collection and control  Fast Ethernet/Gigabit Ethernet interface to backhaul  RLC, MAC/PHY processing  OFDMA/SC-FDMA channel processing

The main functions of radio unit are as follows.

 Upconversion/downconversion of frequency  High-power amplification of RF transmission signal  Suppression of out-of-band spurious wave emitted from RF Rx/Tx signal  Gain control of RF Rx/Tx signal  Rx/Tx RF signal from/to an antenna  Low noise amplification of band-pass filtered RF Rx signal

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