20110415 overview

7/27/2019 20110415 Overview

1/15

www.huawei.com

March 2011

7/27/2019 20110415 Overview

2/15

Contents

tecnologas de acceso vs. standard version (technology acronym)

mobile evolution

clarification of reasons and highlights for each technology

IP ss7, sigtran or all IP

Page 2

7/27/2019 20110415 Overview

3/15

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential

Mobile Technology Evolution

Page 3

AMPS

TACS

NMT

Others

GSM

CDMAIS95

PDC

1G: 80Analog

2G: 90Digital IMT-2000

3GIMT-2000

4G

Analog Voice Digital Voice Voice & Broadband Broadband

UMTS

CDMA2000

TD-SCDMA

WiMAX

16d

TDMA

D-AMPS

IS-136

CDMA

WCDMA

16e

OFDMA

LTE

7/27/2019 20110415 Overview

4/15


Detail on Telcels Evolution

Page 4

AMPS

GSM

D-AMPS

IS-136

UMTS

LTE

FM - Analog Technology, 30khz carrier

Only voice

TDMA - Digital Technology, 30 khz carrier

Voice

Circuit Switched Data, CSDPacket Switched Data, CDPD

TDMA - Digital Technology, 200 khz carrierVoice

Circuit Switched Data, CSD

Packet Switched Data, GPRSEDGE

WCDMA Digital Tech., 5 Mhz carrier

Voice and Data

PS R99, HSPA (HSDPA, HSUPA),

HSPA+

7/27/2019 20110415 Overview

5/15


Digital Modulation

Page 5

Q

I

I

Q

I

Q

10 11

00 01

0011

11111100

0000

11111111

0000111100000000

1110000

QPSK 16QAM

64QAM

SINRRSCP

Spectral Efficency

bit/Hz

7/27/2019 20110415 Overview

6/15


FM, TDMA and CDMA

Page 6

Power

Power

Power

Single Carrier is used for single user fror the whole time

the communication is onFM Radio, AMPS

Single Carrier is divided into Time Slots (3 for TDMA and8 for GSM)

Each user uses one Time Slot

Time Slots are for voice or data

Narow Carrier or WideBand Carrier

Single carrier is shared by different users simultaneously

Each users communication is coded at TX and decoded at

RX

Because is the same frequency each user increases noise

level for the others

7/27/2019 20110415 Overview

7/15


LTE: OFDMA and Resource Block

Page 7

15 khz

12 x 15 khz

The whole Spectrum is divided in 15 khz sub carriers, orthogonal to each other (no interference

between them)

Each 12 sub carriers is one Resource Block for transmission during 1 ms.

Spectrum Allocation for LTE

Resource Block

7/27/2019 20110415 Overview

8/15


LTE: Resource allocation in Downlink (OFDMA)

Page 8

Spectrum is allocated per resource block every1 ms.

Resource Blocks are allocated by the

scheduler, based on Class of subscriber and

Services QoS

RBs can be continuos or not

7/27/2019 20110415 Overview

9/15


LTE: Resource allocation in Uplink (SC-FDMA)

Page 9

UL uses Single Carrier -FDMATo save Power Consumption in the UE

To keep Chipset simplicity

RBs in the UL must be continuos, so it seems

as a Single Carrier

EnodeB Scheduling for Uplink

7/27/2019 20110415 Overview

10/15


3GPP Network Evolution

Page 10Page 10

Gb

BTS

BSC

GPRS/EDGE

BSS

Abis

GERAN

Gi / SGi

HSS

2G

S6

Gn / S11

SGSN

GGSN

S1-U

S1-MME

eNodeB

EUTRAN

LTE

MSC

3GNodeB

RNC

UMTS/HSDPA

UTRAN

Iub

LTE

+ MME

+ SGW+PGW

LTE Highlights:

-No CS

-No RNC/BSC

-ENodeB interconnected

-Differentiated UP and CP

7/27/2019 20110415 Overview

11/15


LTE Network Architecture

Page 11

Evolved

Packet Core

ALL-IP flat network architecture

Flexible deployment options for centralized services and local

breakout for internet access

Scalable architecture for capacity growth

LTE

HSS

PCRF

eNodeB

S1-U

Gx

S5/S8

S1-MME

S6a

S11

SGi

S9S10

User plane

Control plane

Corporate

Services

Internet

Operator Service

Network

MME

Serving GW PDN GW

LTE

eNodeB

X2

S1-MME

S1-U

E-NodeB Becomes smarter

-RRM

-Scheduler

-LTE specific features

-HO & IRAT HO

-SON support and

implementation

E-RAN

7/27/2019 20110415 Overview

12/15


Key Technologies in LTE

Page 12Page 12

SingleCarrierSub-frame

Frequency

Time

TimefrequencyresourceforUser1



SystemBandwidth

Sub-carriers

Sub-frame

Frequency

Time

Time frequencyresource forUser 1



SystemBandwidth

OFDMA / DL

SC-FDMA / UL MIMO

Scalable

Bandwidth64QAM

Scalable Bandwidth

MIMO

Channel

Data

Streaming

DL

OFDMA

173M

UL

SC-FDMA

84M

MIMO (Multiple input Multiple Output) for

UL & DL

Increased link capacity

Multi-Users MIMO (UL)

Overcome multi-path interference

Higher Modulation Technology

increase bandwidth

RB=12x15khz

BW 1.4Mhz 3 Mhz 5 Mhz 10 Mhz 15 Mhz 20 Mhz

RB 6 15 25 50 75 100

#SC 72 180 300 600 900 1200

LTE

7/27/2019 20110415 Overview

13/15


LTE Upper Layer Technologies

Page 13Page 13Page 13

Network Control HO

IRAT Mobility

LTE

SON

Dynamic

Semi-Static

Self-Config.: Quick Deployment

eNodeB

M2000, DHCP

File Server

Config

S/W

ConfigS/W

1

2

3

6

5

7

4

1

2

3

6

5

7

4

Frequency

Cell1Power

Frequency

Cell2,4,6Power

Frequency

Cell3,5,7Power

20ms 160ms

Trans

ient

perio

d

Talk

spurt

s

Silent period Talk

spurt

s

SID frame

2G/3G Coverage

LTE

Coverage

PS Hand over

ANR:Automatic NeighborRelation

Throughput

PF

Delay

Fairness

RR

Max C/I EDF

Throughput

PF

Delay

Fairness

RR

Max C/I EDF

HARQ/ARQ 1ms TTI PWR CTRL ICIC

Interference

control

Scheduling

Mobility

7/27/2019 20110415 Overview

14/15


EPC Key Network Technologies

Page 14Page 14Page 14

dynamic policy

charging control

A common core for allwireless technology

EPS

Inter-working with 2G/3GCS & PS Networks

Hardware Pooling for

Scalability and network

reliability

MME Pool

SGW Pool PDN-GW

Pool

Operators

IP Service

MME selection

SGW selection PDN-GW selection

(EPS Bearer)

Serving GW PDN GWeNBRadio Bearer S5/S8 Bearer

Application / Service Layer

UL-TFTRB-ID

DL Traffic Flow AggregatesDL-TFT

DL-TFT S5/S8-TEIDRB-IDS1-TEID

S1 Bearer

S1-TEID S5/S8-TEID

UE

UL Traffic Flow AggregatesUL-TFT

Serving GW PDN GWeNodeB

UE

NodeBEMSC

Handover

MME

SAE-GWeNodeBSRVCC UE

RNC

SGSN

MSC

MAP E

Iu-cs

Sv

VCC AS

3GPP

IMS

Bearer beforehandover

Bearer afterhandover

SIP signaling

Evolved Packet Core

GPRS

UMTS

LTE

CDMA

HSS/SPR

PCRF

BTSBSC/PCU

NodeB RNC

eNodeB

A10/A11

S1-U

S4

Gx

S5/S8

S1-MME S12

S3 S6a

S11

SGi

S9S10

User plane

Control plane

BSC/PCFBTS

InternetOperator

Service

Network

S2a

S101S103

MME

Serving GW PDN GW

PDSN/HSGW

Gxc Gxa

SGSN

Gb

Iu

EMS (M2000)

Sp

Corporate

Services

E2E QoS Pool Resources

Common CoreInterworking

7/27/2019 20110415 Overview

15/15

Thank youwww.huawei.com

20110415 overview

Documents