Channel Access Method (or) Multiple Access Method

Several terminals connected to the same multi-point transmission

medium

Example: -Wireless Network

- Bus Network

- Ring Network

- Hub Network

Fundamental types of Channel access methods

Frequency Division Multiple Access (FDMA)

Time Division Multiple Access (TDMA)

Code Divison Multiple Access (CDMA)

CDMA Network Evolution

First CDMA based cellular system

Refer to the ITU IS-95 wireless interface protocol

2G Mobile wireless Technology

Two versions of IS-95, called IS 95A and IS-95B

IS-95A Protocol employs 1.25MHz carrier

Operates in Ratio-frequency bands at either 800MHz and 1900MHz

Support circuit switch data speed of 14.4Kbps

IS-95B ,2.5G , support packet switch data speed of 64Kbps

Cdma One

CDMA Network Evolution

Known as CDMA 2000 1X

3G Mobile wireless Technology

Support up to 35 simultaneous voice call per sector and packet data

speed upto 153Kbps in a single 1.25MHz radio channel

The sets of CDMA 2000 standards include

-CDMA 1X

-CDMA EVDO Rev-0, Rev-A, Rev-B

CDMA 2000 (IS – 2000)

CDMA 2000 1X RF Bandwidth

Radio Channel Up Link Down Link

Lower Frequency

Upper Frequency

Lower Frequency

Upper Frequency

31 825.305 826.555 870.305 871.555

73 826.565 827.815 871.565 872.815

115 827.825 829.075 872.825 874.075

157 829.085 830.335 874.085 875.335

199 830.345 831.595 875.345 876.595

241 831.605 832.855 876.605 877.855

283 832.865 834.115 877.865 879.115

325 834.125 835.375 879.125 880.375

CDMA (800MHz) Core Network Diagram

Existing CDMA (800MHz) System Configuration Diagram

CDMA 800MHz CDMA 450MHz

Functions of MSCe in the CDMA network

The MSCe is the softswitch center in a CDMA network.

It incorporates the VLR database. Its functions include:

• Call control

• Access control of MGW

• Resource allocation

• Signaling processing

• Routing

• Authorization

• Charging

The MSCe is used to provide basic services, mobility

management, and multimedia services for subscribers.

Basic performance specifications of CSOFTX3000

Item SpecificationMaximum subscriber capacity of MSCe 3000,000 (0.025 Erl per

subscriber when busy)BHCAs (as MSCe) 6,000,000Maximum narrowband links (64Kbps) 1,728Maximum narrowband links (2Mbps) 108Maximum broadband links 2,304CDR storage capability 300 GBMaximum E1 interfaces (bearing narrowband SS7signaling)

432

Maximum controllable MGWs 300Maximum controllable BSCs 64

Functions of MGW in the CDMA network

The MGW incorporates the MRFP to convert the format of

media streams, play announcement, and provide conference

resources and other media resources.

MGW incorporates SG functions and can realize signaling

interworking between the IP bear and the SS7 signaling

network.

Functions of VLR in the CDMA network

The VLR is a dynamic database for subscribers. It stores

the Information of the subscribers currently in its MSC area.

The VLR is integrated with the MSCe physically.

Functions of HLR in the CDMA network

The HLR is a database for mobile subscriber management.

It stores the following information:

Subscription information

Subscriber states

MS location information

MDN

IMSI (MIN)

The AC is used to manage the information necessary for

subscriber authentication. It is physically integrated with the HLR.

Functions of PDSN in the CDMA network

The PDSN is a gateway used to connect the mobile network and

IP backbone network.

It provides access to packet data service for mobile subscribers.

Functions of AAA in the CDMA network

The AAA server is a high-performance remote verification server for dial-in subscribers. It provides the following functions: Authentication Authorization Accounting Data value-added services It supports the following features: Multiple databases Powerful agent Flexible operations

Functions of NMS in the CDMA network

The NMS is used to implement the following functions:

Centralized fault management

Centralized performance management

Centralized configuration management

Centralized software management

Centralized topology management

Centralized security management

System management

SIWF (Shared Internetworking Function)

the feature of CDMA facsimile service supported by

SIWF.

BSC6680 Overview

Base on 3GPP2, Complient with IS-95/CDMA 2000 1XEV-DO Rev-A

Advanced All IP design, High integration

Configuration: 2Cabinets, 5 Sub-racks

4Gbps Packet throughput within 2 Cabinets

BSC 6680 Specification

Item SpecificationDimensions H: 2200mm, W: 600mm , D: 800mmWeight ≤ 650Kg/ 2 CabinetsNumber of full config 5 subracks/ 2 CabinetsTemperature/ Humidity +5~+45̇C, 5%~85%

-5~+55̇C, 5%~95% (96 Hours) Power input -48V DC (-40V~-57V)DO Packet Throughput 4Gbps/ 2 Cabinets1X Voice Traffic 50,000 Erl/ 2 CabinetsTRX 6,000Power Consumption ≤8200W (full configuration)

Interface Protocol Type supported

AbisATM E1/T1/STM-1/OC-3

IP E1/T1/FE/GE/STM-1/OC-3

A1/A2/A5 TDM E1/T1/STM-1/OC-3

A1P/ A2P IP E1/T1/FE/GE/STM-1/OC-3

A3/ A7/ A13/ A16ATM E1/T1/STM-1/OC-3

IP E1/T1/FE

A10/ A11 IP FE/GE

A12 IP FE/GE

A17/ A18 IP E1/T1/FE/GE/STM-1/OC-3

Flexible Transmission Configuration

Page 20

High Performance 4th Generation BTS

V1

V2

V3

V4

BTS3612 BTS3601C

BTS3606

BTS3606E BTS3606C

• IS-2000• Single carrier

• DOR0• Multi carrier

• DORA• 80W TOC Power • 33% PA efficiency

• 40% PA efficiency, 100W TOC Power • Unified Platform, Modularization Design

BBU

RRU

BTS3900/A

Huawei 4G BTS: Persistent innovation

RRU

1995

1998

2003

2007

Overall Structure of the DBS 3900

DBS 3900GPS antenna

UM

MS

RF antenna RRU 3606 BBU 3900 BSC

BBU3900 - Baseband unit of DBS 3900RRU 3606 - Remote RF unit of DBS 3900APM- 30 - An integrated power system

Support -48V DC and 110/220V AC power supply

Hardware Structure of the DBS 3900

Page 23

Transformer – DBS3900

CPRI

BBU

RRU

DBS3900Convergence- CDMA/LTE Co-platform- Smooth Upgrade to Future

Multicarrier- 3G Based Digital IF Technology- 8 Carriers supported in one RRU

Green- 33% PA Efficiency with DPD + Doherty- Decreasing Power Consumption Greatly- Facilities Reduction

ALL IP- IP Protocol Stack, Interface, and IP Transmission- Transmission Saving

Configuration Principle of the BBU-3900

F

A

N

HCPM/HECMHCPM/HECMHCPM/HECMHCPM/HECM

HCPM/HECM/UTRP

CMPTChannel element subsystem

PWR

PWR

Control & CLK& Interface subsystem

Support CDMA/LTE Dual-mode

Weight: < 11Kg

-48V DC/ +24V DC

More Transmission: 24 E1/T1 + 1

FE

Large 1X Capacity: 1536 CE,

Large DO Capacity: 1704 CE,

Specifications:

86 mm

310 mm 442 mm

Standard 19 inch cabinet

HCPM/HECM/UTRP

CMPT

- BBU-3900 is the baseband processing Core of the DBS-3900- One BBU-3900 is configured in each DBS3900- The main boards are CMPT, HCPM, UPEU and FAN

Module Full Name FunctionCMPT Main Processing and Transmission Unit The CMPT implements data transmission between the BTS and the BSC,

controls and manages the BTS, and provides clock signals for the BTS.

HCPM HERT Channel processing Module The HCPM processes 1X service data on the forward and reverse channels.

HECM HERT Enhanced Channel Processing Module

The HECM processes the EVDO service data on the forward and reverse channels.

UTRP Universal Extension Transmission Processing Unit

The UTRP realizes connection between the BBU3900 and the BSC. It also supports the E1/T1 transmission and IP transmission.

UELP Universal E1/T1 LightningProtection Unit

The UELP provides lightning protection for E1/T1 signals of the BBU3900.

UFLP Universal FE/GE LightningProtection Unit

The UFLP provides lightning protection for FE signals of the BBU3900.

FAN Universal FAN Unit of the BBU3900 The FAN is the main component for heat dissipation of the BBU3900.

UPEU Universal Power and Environment Interface Unit

The UPEU provides the power conversion from -48 V/+24 V DC to +12 V DC and the environment monitoring signal port for the BBU3900.

USCU Universal Satellite Card and Clock Unit The USCU provides the input port for external signals, such as satellite clock signals, and provides the clock synchronization for the BBU3900 and the RF modules connected with the USCU.

Module of the BBU 3900

BBU3900

Optical fiber

RF Modules

RRU3606

488 mm

288 mm

155 mm

Frequency: 800M/1900M/AWS/450M/2.1G

Capacity: 8 carriers TOC power: 60W Weight: 17Kg Temperature: -40℃ ～ +52℃ Receiving sensitivity: -130dBm

Configuration Principle of the RRU 3606

• RRU is the remote RF Unit of DBS 3900

• Single RRU 3606 supports a maximum of eight carriers

• One RRU supports one sector

• DC RRU 3606 supports the 450MHz, 800MHz, 1900MHz

• AC RRU 3606 supports the 800MHz A band Classes

• Generally, three to six RRU 3606 are configured for each DBS 3900

IN(Intelligent Network)(Prepaid System)

Lifecycle of a Prepaid Account

• Idle Period• Active period• Suspend Period• Temp. Deactive period• Deactive period

Dat

e of

Act

ivat

ion

Active period

Suspend period

Deactive

Zero

bal

ance

and

rem

ain

bala

nce

Dea

d Li

ne

Lifecycle Migration Diagram

Temp.Deactive

Dat

e of

Pur

chas

e

Idle period

1 Day 1 Year

Bal

ance

Not

ifica

tion

(200

K &

2 U

SD)

10 Years 6 Months 10 Years

Idle Period

Active Period Suspend Period Temp-Deactive Period

Deactive Period

Check Expire Date on Top-Up

card

6-MonthsAvailable:OG / IC National CallOG /IC International CallOG/ IC SMSData ServiceEmergency/Free CallsTop-Up (Recharge)

1-DayAvailable:IC National CallIC International CallEmergency CallsFree Termination CallsTop-Up (Recharge)(Add Remain Value)

1-YearAvailable:

Top-Up (Recharge only)( Not Add Remain Value)

10-YearsAvailable:

-

Unavailable:-

Unavailable:OG National CallOG International CallIC/OG SMSData Service

Unavailable:IC National CallIC International CallEmergency CallsFree Termination CallsIC/OG SMSTop-Up (Recharge)Data Service

Unavailable:IC National CallIC International CallEmergency CallsFree CallsIC/OG SMSTop-Up (Recharge)Data Service

CDMA 800 Top-up Card

Voucher u'fwefbdk:tvdkuf oufwrf:owfrSwf]cif:

ueOD: wyfqifc ay:oGif:úyD: oHk:pGJolrsm:> ]ynfwGif:/]ynfy ac;qdkrëtwGuf PREPAID (Top up) u'fwefbdk:tvdkuf oufwrf:vsmxm:]cif:

u'f (1) u'f wefbdk:(usyf)

Validity period  

u'f (1) u'f wefbdk:(FEC)

Validity period

cGifh]yKumv  

cGifh]yKumv

1,0000 6 v   20 6 v3,0000 6 v 50 6 v

 

CardsExpire Date  

CardsExpire Date

(Start on purchasing Date)   (Start on purchasing

Date)

10,000 K 90 Days   20 FEC 90 Days30,000 K 90 Days   50 FEC 90 Days

Subscription Fee (Kyats)

Outgoing Call

SMS (Per Message)Local Call

(1 min)International Call

(1 min)

500,000 Kyats 50 Kyats (0.9 +upto) FEC 25 Kyats

w<fvDzkef:ac;qdkcóSKef:xm:

w<fvDzkef:ac;qdkcóSKef:xm:rsm:udk rdkbdkif:w<fvDzkef:ac;qdkc

óSKef:xm:rsm: twdkif:aumufcHygrnf` ]ynfwGif:ac;qkdc wpfrdepf

(50)usyf ]ynfyac;qkdc wpfrdep f

(0.9 óSifhtxuf)FEC

SMS wpfapmif(pmvkH:a\-140vkH:)(25)usyf

Data Servicewpfrdepf (4)usyf

w<fvDzkef:ac;qdkcóSKef:xm:(]ynfwGif:)

0 6 12 18 24 30 36 42 48 54 60 (Seconds)

(Kyats)5 5 5 5 5 5 5 5 5 5

(1) rdepf = 50 usyf

(6) pUefh twGif:tokH:]yKc = 5 usyfóSKef:]zifhaumufcH]cif:

CDMA 800 MHz Prepaid Phone Service Feature

aiGvufusefppfaq:enf:• *161 onf IVR

(tvdktavûmufa]zjum:]cif:pepf]zifhaiGvufusefppfaq:enf:)

• *162 onf SMS pepf]zifhaiGvufusefppfaq:enf:• 166 (Main Menu) >vkyfaqmifcsufrsm:

eHygwf(1) onfaiG]znfh]cif:`eHygwf(2)onfvufusefaiGppfaq:]cif:`eHygwf(3)onfvûdK.0SufeHygwfa]ymif:]cif:`eHygwf(4)onfu'faysmufwdkif:jum:]cif:`eHygwf(0)onf operatoróSifh qufoG<f]cif:`

aiG]znfh]cif:enfrs

m:• Main Menu rS bmompum:a|G:cs<f]yD: eHygwf (1)

udkóSyf]yD: IVR aiG]znf.]cif:enf:`• * 166 * Pin No # ]zifh SMS ]zifhaiG]znfh]cif:enf:` vûdK.0SufeHygwf• qufoG<fa\:rS oufqdkif\mzkef:wpfvkH:pDtwGuf

oufrSwfay:xm:aom vûdK h0SufeHygwftm: rdrdjudKufóSpfouf\m vûdK h0SufeHygwfa]ymif:ódkif]cif:`

• 4if:vûdK h0SufeHygwfudk tokH:]yKI t]cm:zkef: rS rdrdzkef:tm: (u'faysmufwdkif:jum:]cif:pepf)]zifh zkef:ac;qdkrëydwfódkif]cif:`

CDMA EVDO MobileBroadBand Technology

Evolution Data Optimized (or) Evolution Data Only

3G Mobile Broadband Technology

Utilizes CDMA Signal

CDMA MBB Evolution

1XEVDO Rev-0, 1XEVDO Rev-A,

1XEVDO Rev-B Ph1, 1XEVDO Rev-B Ph1,

CDMA (800MHz) EVDO System Configuration

PDSN

AAA

Firewall

BSCCDMA 1X/EV-DO

Web server

1X/DO

1X/DO

1X/DO

Radio Network

Packet Data Network

IS-2000(cdma2000 1X)

LTE(long termEvolution)

1x EV-DO Rev 0

1x EV-DO Rev A

1x EV-DO Rev B Ph1

1x EV-DO Advanced

Data Rate Enhancement

DL: 2.4MRL: 153.6k

DL:3.1MRL:1.8M

DL: 9.3MRL: 5.4M

1x EV-DO Rev B Ph2

DL:14.7MRL: 5.4M

CDMA MBB Evolution

1XEVDO Rev-0, 1XEVDO Rev-A, 1XEVDO Rev-B Ph1, 1XEVDO Rev-B Ph1

EVDO Data Peak Rate

Type Download Upload

EVDO Rev-0 2.4 Mbps 153.6 Kbps

EVDO Rev-A 3.1 Mbps 1.8 Mbps

EVDO Rev-B Ph1 9.3 Mbps 5.4 Mbps

EVDO Rev-B Ph2 14.7 Mbps 5.4 Mbps

Evolution Path for CDMA and WCDMA

OFDM

CDMA20001X

2001 2002 2003 2004 2005 2006 2007 2008

CDMA20001xEV-DO

1xEV-DORev.A

1xEV-DORev.B

CDMA2000

R5HSDPA

R6HSUPA

R99/R4 WCDMA

R7HSPA+

R8HSPA+

LTE

DL:153.6kUL:153.6k

DL:2.4MUL:153.6k

DL:3.1MUL:1.8M

1.25M-20MHzDL:73.5MUL:27M

DL:384kUL:384k

DL:14.4MUL:384k

DL:14.4MUL:5.76M

DL:40MUL:11M

1.25M-20MHzDL:100MUL:50M

WCDMA

CDMA/TDM CDMA

2009

LTE

1.25M-20MHzDL:100MUL:50M

Data Rate Comparison with other technologies

Type Download Rate Upload Rate

DORA (1.25 MHz) 3.1 Mbps 1.8 Mbps

DORB Phase1 (3.75MHz) 9.3 Mbps 5.4 Mbps

DORB Phase2 (3.75MHz) 14.7 Mbps 5.4 Mbps

HSPA (5MHz) 14.4 Mbps 5.76 Mbps

EDGE (2.5G) 1Mbps 400 Kbps

ADSL 8 Mbps 1 Mbps

ADSL 2+ 24 Mbps 3.3 Mbps

Dial Up 56 Kbps 56 Kbps

BTS Hardware Equipment For CDMA 1X + EVDO

CDMA 1X

CDMA 1X 1X+ EV-DO

CDMA 1X + EV-DO

CDMA 1X

SoftwareUpdate

1X+ EV-DO

EV-DO Card

FAN

PWR

PWRHCPM CMPT

FAN

PWR

PWRHECMHCPM CMPT

Page 48

1xEV-DO traffic model

Traffic Model Traffic Model (DORA)Busy hour EAP 12%

Planning sector throughput (kbps) 1200

Planning user throughput (kbps) 150Simultaneously supporting user

number 8

S111 BTS capacity 200

EAP (Equivalent Active Percentage) of different user type: Individual: 3 ％ SME: 12% Internet cafe : 30 ％

Mobile wireless broadband standards

Type Standard

AMPS (Advanced Mobile Phone System) 1G

GSMCdma One (25-95)D-AMPS (IS-54 and IS-136)

2G

EDGE/ EGPRSCDMA 2000 1XRTT (IS-2000) 2.5G, 2.75G

WCDMACDMA 2000 1X EVDO Rev-0 3G

HSPA, HSPA+CDMA 2000 1X EVDO Rev-A, EVDO Rev-B 3.5G, 3.75G, 3.9G

LTE Advanced 4G