20071204-phase 5 - south area - technical proposal for core network expansion

Technical Proposal for EVNTelecom

CDMA 1X

Phase 5 Core Network Expansion

SOUTH AREA

2007

PHASE 4 PROJECT Commercial in Confidence I

TECHNICAL PROPOSAL FOR EVNTELECOM CDMA 1X IN SOUTH AREA

TABLE OF CONTENTS

1 Preface..........................................................................................................1

2 Network Solution Proposal.............................................................................2

2.1 Requirement Analysis.........................................................................................2

2.2 Design Assumptions...........................................................................................3

2.3 Network Design Principle....................................................................................3

2.4 Network Diagram...............................................................................................4

2.4.1 Network Overview.................................................................................................4

2.4.2 Network Configuration............................................................................................4

2.4.3 O&M Network........................................................................................................4

2.5 Network Explanation..........................................................................................4

2.5.1 Network Dimension................................................................................................4

2.5.2 Solution Highlights.................................................................................................6

2.5.3 Equipment List.....................................................................................................11

3 Equipment Dimensioning and Design Methodology.......................................12

3.1 HLR/AC...........................................................................................................13

3.1.1 Features of HLR/AC.............................................................................................13

3.1.2 E1 Interfaces and CCS7 Links of HLR/AC.............................................................13

3.1.3 Physical Dimension of HLR/AC............................................................................14

3.2 MSC/VLR/SSP.................................................................................................14

3.2.1 Features of MSC/VLR/SSP..................................................................................14

3.2.2 E1 Interfaces and CCS7 Links of MSC/VLR/SSP..................................................15

3.2.3 Physical Dimension of MSC/VLR/SSP..................................................................16

3.3 BSC/PCF/IWF(AN)...........................................................................................16

3.3.1 Features of BSC/PCF/IWF...................................................................................16

3.3.2 Interfaces and Links of BSC/IWF..........................................................................17

3.3.3 Physical Dimension of BSC/PCF/IWF...................................................................17

3.4 BTS.................................................................................................................18

3.4.1 Features of BTS..................................................................................................18

3.4.2 Configuration Summary.......................................................................................19

3.4.3 Physical Dimension of BTS..................................................................................19

3.5 PDN.................................................................................................................19

3.5.1 Features of PDSN/AAA/AN-AAA..........................................................................19


PHASE 4 PROJECT Commercial in Confidence I


3.5.3 Physical Dimension..............................................................................................20

3.6 OMC................................................................................................................21

3.6.1 Features of iManager M2000................................................................................21


4 Power System.............................................................................................23

4.1 Power Consumption.........................................................................................23

4.1.1 Equipment Room in Khanh Hoa province..............................................................23

4.1.2 BTS Rooms.........................................................................................................24

4.2 Power Equipment.............................................................................................25

4.2.1 Power System in Khanh Hoa province......................................错误！未定义书签。

4.2.2 Power System for BTS.........................................................................................25

4.2.3 Power Measurements by EVN Telecom................................................................27

4.2.4 Power Measurements by Huawei.........................................................................28

5 Summary.....................................................................................................29

ANNEX 1. Abbreviations.................................................................................30

ANNEX 2. Network Diagram............................................................................33

ANNEX 3. BSC Dimensioning Notes...............................................................34

ANNEX 4. Power System Notes......................................................................42

PHASE 5 PROJECT – SOUTH AREA Huawei Confidential II


1 Preface

In order to provide EVNTelecom with the perfect mobile network solution, Huawei has designed a 450MHz CDMA2000 1X & 1X EV-DO system, transmission network and power supply system in this technical proposal. According to the technical requirements stipulated in the tender document, Huawei has processed the network design and dimensioning that involves BSS network, NSS network and management network in the Southern area of Vietnam.

Huawei will give detailed descriptions about the proposed network in following sections:

In section 2, the requirements of EVNTelecom are analyzed, and then the proposed CDMA network architecture is given in details.

In section 3, dimension of the equipments and its highlights are outlined.

In section 4, the power supply system is specified.

In section 5, a summary of this proposal is provided.

Huawei believes that the proposed solution can fully meet the requirements of system capacity and quality of service. Huawei has taken into consideration on the economic scale and the developmental factors to effectively reduce the cost of network construction and expansion. This solution also presents mature technologies with capability of smooth evolution to CDMA2000 1X EV-DO, which will benefit EVNTelecom in the near future.

Huawei is looking forward to a long term business relationship with EVNTelecom.

PHASE 5 PROJECT – SOUTH AREA Huawei Confidential 1


2 Network Solution Proposal

2.1 Requirement Analysis

After in-depth analysis and comprehension of network environments, considering the network future development, Huawei provides this solution proposal, which is believed to be able to meet the requirements of EVNT.

After three projects, including Stage I, II and III, Huawei has had more understanding about EVNT network and more experience to cooperate with EVNT. This technical proposal will describe Phase 4 project.

1. Equipment: The elements of CDMA network which should be expanded and quoted include equipment of Network Subsystem (NSS), Base Station Subsystem (BSS), Subsystem of Operations (OSS), Short Massage System(SMS), Transmission and Power Supply System.

2. Regions: The covering areas is the following 08 provinces in South Vietnam, including Lam Dong, Binh Duong, Binh Thuan, Ninh Thuan, Binh Phuoc, Ba Ria –Vung Tau, Tay Ninh and Khanh Hoa.

3. The requirements for each province are as follows:

No ProvinceNew Subs

NEW BTSBTSS111

(64)S111(96)

S111(128)

1 Lam Dong 16,000 4 7 - 11 2 Binh Duong 22,000 3 11 2 16 3 Binh Thuan 18,000 5 8 1 14 4 Ninh Thuan 4,500 3 1 - 4 5 Binh Phuoc 15,000 7 5 - 12 6 BRVT 15,000 3 7 - 10 7 Tay Ninh 18,000 7 7 - 14 8 Khanh Hoa 23,000 9 5 3 17

Total 131,500 41 51 6 98

All BTS in the above provinces are connected towards the MSC in Khanh Hoa.

4. The following table lists the locations where existing BTS shall be upgraded and the amount of increased channels and TRX.

No ProvinceTotal

Additional CE

Total Additional

TRX

Upgrade BTS

S111(64)>

S111(128)

S111(96)>

S111(128)

S111(96)>

S222(224)

1 Lam Dong 192 3 1 - 1 2 Binh Duong 128 0 2 - -3 Binh Thuan 224 0 3 1 -4 Binh Phuoc 128 0 2 - -5 BRVT 128 0 2 - -6 Khanh Hoa 64 0 1 - -

Total 864 3 11 1 1

2.2 Design Assumptions



Basic requirements from EVNTelecom documents and all network assumptions made by Huawei are shown in table 2-1. Huawei has taken this information in full consideration throughout the design process. Should any of these assumptions be changed, the design would be updated accordingly. Huawei’ s proposed network has been designed in accordance with the following parameters and based on the RF Plan.

Table 1-1 Traffic Model

1. Basic Parameters

Average Traffic per Subscriber (Erl) 0.02

Percentage of SMSC Subscriber 100%

CCS7 Signaling Link Load (Erl) 0.2

Average Mean Holding Time per Call (Sec) 72

Type of Trunk (ohm) 120

2 Packet Data Parameter For 1X system

Percentage of Packet Data Subscriber 15%

PPP Session Hold Time (Sec) 800

Link Average Data Service Rate (Kbps) 36

3. Prepaid Service Parameter

Percentage of Prepaid Subscriber 100%

4. Grade of Service (GoS)

Um Interface 2%

A Interface 1%

Other Interfaces 1%

5. Traffic Distribution

Mobile to Mobile (inner MSC) 14.72%

Mobile to Mobile (inter MSC) 14%

Mobile to PLMN 20%

Mobile to PSTN 27.52%

PSTN to Mobile 23.76%

Remark: Items marked with asterisk (symbol *) are assumed by Huawei.

2.3 Network Design Principle

In order to achieve a network design that can meet the requirement of EVNTelecom, Huawei has made analysis mentioned below:

1. BTS type suggestion

Multiple-carrier technical BTS3606 shall be provided in this project. The advanced multiple carrier technology is introduced, which enables one physical TRX to support up to 3 carriers for it have flexible configuration from S1 to S666 for upgrading with lower cost as compared with single-carrier BTS. This feature makes BTS3606 to be suitable for all kinds of traffic requirement.

2. Network Expansion



According to the “Technical Specification” from EVNTelecom for South Area, we expand the CDMA 2000 1X network in Nha Trang to support the following capacity.

Existing Added Total

MSC in Nha Trang (Subs) 454700 131500 586200

Voice Traffic Erlang 9094 2630 11724

Number of BTS connected to 2 BSCs in Nha Trang

232 98 330

Number of BTS connected to BSC1 in Nha Trang 139 45 153

Number of BTS connected to BSC2 in Nha Trang 93 53 177

- The core network (MSC/VLR, HLR/AuC, BSC, M2000) and all other equipments, materials related at Nha Trang are also upgraded.

2.4 Network Diagram

In this section, Huawei provides three of the networking diagrams, they are network overview diagram, network diagram with detailed links/E1s deployment and O&M network diagram, where you may get a clear concept of the whole networking.

2.4.1 Network Overview

Please refer to FIGURE 1 NETWORK STRUCTURE OF CDMA 2000 1X SYSTEM – EVNTELECOM SOUTH in Annex 2

2.4.2 Network Configuration

Please refer to FIGURE 2 NETWORK DIMENSION OF CDMA 2000 1X SYSTEM – EVNTELECOM SOUTH in Annex 2

2.4.3 O&M Network

Please refer to FIGURE 3 O&M NETWORK STRUCTURE – HUAWEI M2000 SYSTEM in Annex 2

2.5 Network Explanation

This section introduces in detail the network dimension, network solution highlights and equipment list supplied by Huawei.

2.5.1 Network Dimension

Huawei provides equipment for 450MHz mobile service in EVNTelecom. Based on the project requirements, we shall have the following network layout after upgrading

Network dimension promotion for South area:



01 MSC/VLR (586200 subs) + 01 HLR/AC (650000 subs) + 1 PDSN (56.1 Mbps) + M2000 (13 Terminals) + BSC1 (522 1X-TRX + 16800 1X-TCE) + BSC2 (582 1X-TRX + 17344 1X-TCE)

BSS network design explanation:

The BSC is integrated with PCF for 1X /1X EVDO packet data service and IWF function for circuit data service. When BSC is connected to upper network system, the service forms two directions: circuit domain and packet data domain. In circuit domain, BSC is connected to MSC via A1/A2 interfaces, realizing traditional voice services and circuit data service. The circuit data service is a kind of low-speed data service of 14.4Kbps bit rate and is used for FAX and asynchronous data service. In packet data domain, BSC/PCF is connected to PDSN via A10/A11 interfaces to realize high speed data service at a rate of 153.6Kbps in 1x system and 2.4Mbps in 1x EVDO system. At the same time, BSC is connected the AN-AAA via A12 interfaces to realize management of the EVDO subscriber data. Meanwhile, BSC is connected to BTS via Abis interfaces.

BSC1 in Khanh Hoa is connected with 153 BTS (in Binh Thuan, Ninh Thuan, Vung Tau, Khanh Hoa) through in 174 Abis E1 transmission.

BSC2 in Khanh Hoa is connected with 177 BTS (in Binh Duong, Binh Phuoc, Tay Ninh, Lam Dong) through in 194 Abis E1 transmission.

The detailed BTSs networking mode of BSC is shown as below:

E1 for Abis Interface E1 Existing E1 Added E1 Total

BSC1 in Nha Trang 165 9 174

BSC2 in Nha Trang 101 93 194

NSS network design explanation:

Khanh Hoa city is in the boundary city of the South region which have very high density popularity, so we put the central room in Khanh Hoa city which include HLR, MSC, BSC, PDSN and M2000 central system. Most of these equipments’ interfaces are in the same room, such as C/D interfaces, most of the A1/A2 interfaces and A10/A11 interfaces. It would reduce the overall infrastructure and installation costs, such as power system, and long-distance transmission resources like E1.

HLR provides interfaces for business hall and realizes the real-time services. It communicates with Business Halls through TCP/IP on a real-time basis. Operators can establish the Business Hall according to their own requirements. There is no limit on the number and distance of business halls.

The MSCs is integrated with SSP functions for intelligent services. MSC is connected to HLR via C/D interfaces; to BSC via A1/A21 interfaces; to SMSC, SCP and PSTN via E1.



Huawei MSC integrated iGWB (iGateway Bill) system to realize completing call bill receiving and storage, generating CDR (Call Detail Record), and providing interfaces with the Billing Center

PDSN is of packet data domain in CDMA system and mainly consists of MIP HA server. AAA server and PDSN server. PDSN is connected to upper system internet through firewall, and is connected to lower system PCF via A10/A11 interfaces, in this way, CDMA system provides high speed packet data service for subscriber. We propose 9.85 Mbps capacity Packet Data Service Node (PDSN) in this project according to the requirement of the capacity, and it can be expanded easily and smoothly to a larger capacity PDSN.

The AN AAA is integrated with the AAA physically. However, their software is separated. Their authentication procedures and modes are the same. The only difference is that the AN AAA needs to return the IMSI of the AT after the authentication.

The O&M system is composed of servers and O&M terminals, which is Huawei iManager M2000 product. Furthermore, iManager M2000 is responsible for maintaining all equipment of Huawei mobile system via LAN, including HLR, MSC and BSC.

2.5.2 Solution Highlights

Huawei delivers a high performance, cost-effective and tailor-made CDMA End to-End solution. The offered solution covers network equipment, service platform, user terminals and after-sale service supporting.

In order to achieve a network design that can fulfill the requirements of EVNTelecom, Huawei has made use of the outstanding features of its CDMA products mentioned below in order to enhance the performance of the proposed network.

Enhanced CDMA2000 1X Solutions

Compared with the popularly used Release 0, Huawei take the lead in supporting the more complete Release A, which provides better service and wireless resource management algorithm to enhance network quality. (Huawei system has already support it, but need the corresponding Release A terminal to enjoy the following features)

1) Realize fast access of Release A(0.7~1.7s) , much faster than the 1.5~2.7 second of Release 0;

2) Provide QoS assurance mechanism, which is not available in Release 0;

3) Offer abundant services such as voice and data concurrent service and broadcasting service.



Profitable CDMA2000 1X EV-DO Solutions

Huawei CDMA system is based on CDMA2000 1x, which adopts the latest technology, including broadband platform, digital transceiver, Digital Pre-Distortion (DPD) and , Dorherty(DHT) for high efficiency power amplifier, patent compression algorithm for enhanced Abis, multi-carrier mode support, etc. This advantage allows Huawei to provide a cost-effective and high performance CDMA2000 1x EV-DO system. Until now, the overlay networking of CDMA2000 1x and 1x EV-DO and mixed configuration in the same BTS cabinet have been widely deployed and proven to be advanced and reliable.

Huawei is the first vendor to provide 1xEV-DO enhancement, which can support QoS and BCMCS,, and EV-DO Rev A hardware is ready(based on CSM6800),

Huawei BTS support both CDMA2000 1x and 1xEV-DO carriers in the same cabinet with flexible configuration.

Allow 1x EV-DO co-deployment with IS-95/CDMA2000 1X networks in overlay mode. The three networks can employ the same sector configuration, and share the same equipment such as transmission tower and antenna.

The upgrading from CDMA2000 1x to 1xEV-DO, BTS ONLY need to add 1xEV-DO channel cards; NO hardware and software modification needed for BSC; No extra DO OMC equipment required

Ensure high spectrum efficiency. If for one user, the downlink peak rate is 2.2 Mbps, and uplink, 153.6 kbps; if for multi-users, the downlink peak rate is 2.2 Mbps, and uplink, 808 kbps. The downlink average rate per sector is about 1.0 Mbps, and uplink, 500 kbps.

Support handover between 1X and 1X EV-DO network in dormant state.

Excellent service support ability, video telephone, PTT

AN-AAA server can smoothly upgrade to U-AAA server which provide Unified Authentication, Authorization and Accounting for CDMA1X, EV-DO, WLAN via current IS-41 core network to support roaming, no special network of AAA needed

Advanced, Tailor-made and Cost-effective BTS Family

Years of operational experience reveals to have requires of superior mobile network coverage and high network quality. Based on Huawei technical experience with wireless system design, network planning and deployment, Huawei BTS family is designed with this goal in mind.



The table 2-2 gives brief details about Huawei series of BTS products

Table 1-2 Brief description of Huawei series of BTS Products

Model

Max. sector

carrier per cabinet

Capacity Application Type

BTS3606

Single-carrier

6 Medium

Medium and small cities, towns. Low requirement for equipment room.

Indoor BTS supporting CDMA2000 1x and 1xEV-DO

Multi-carrier

18 Large Highly populated area and city

INDOOR BTS SUPPORTING CDMA2000 1X AND 1XEV-DO

Broad Coverage

Huawei can provide series advanced technologies for wide coverage, such as noise control, power control algorithm, antenna tilting thus improve spectral efficiency as a whole and increase cell capacity while balancing the radio quality of service with minimum cell-breathing effect. Huawei radio equipments full potential can be adjusted to a wonderful receive sensitivity of –128dBm.Through these technologies, the forward coverage radius of Huawei BSS system can reach up to 220 km(line of sight) in 450M system.

And other Huawei particular technologies for broad coverage are below: 1), The output power of Macro BTS can reach up to 60W (in 450M can reach up to 50 by 2~5dB to achieve broader coverage.3) Huawei CDMA2000 1X solution also supports satellite transmission on A or Abis interface, 4) FWT with external directional antenna to extends the coverage , so the networking will no longer completely be restricted by geographical conditions and the cost will be cut down.

Advanced Anti-Interference Technology and Effective Radio Algorithm

Huawei adopt the adaptive notch filter in BTS in full band to offer a excellent anti-interference ability, The ANF technology can suppress 8 in-band narrowband interference signals of the CDMA carrier when the total power of interferences is –60dBm, which can increase the system sensitivity and the system capacity simultaneously. With whole flow traffic leading policy, Huawei CDMA system resources can be fully utilized so as to realize the goal of traffic load equalization and better system performance. The call success rate of Huawei CDMA 1X system is higher than 99%.

Cost-effective Abis Enhancement

Huawei adopt patent compression algorithm in Abis interface, which can support 240 voice channel per E1, while industry average is 170 voice channel per E1, 30% increase on E1 capacity.



Take S222 for example, it can save transmission resource by 50%, save CAPEX efficiently.

High Efficiency Power Amplifier

Huawei BTS adopt latest technology, can provide high efficiency power amplifier. With Digital Pre-Distortion (DPD), efficiency of PA will be 23%, while use Doherty(DHT), PA efficiency can reach up to 33%, much higher than industry average.

With Huawei high efficiency PA solution, power consumption and heat dissipation will be

reduced efficiently:

Power consumption reduction:

Over 28% for S333 BTS (DPD); Over 44% for S333 BTS (DHT)

Heat dissipation reduction:

Over 30.5% for S333 BTS (DPD); Over 47.8% for S333 BTS (DHT)

One-up Time-Delay Compensation Patent In Satellite-Transmission Field

Huawei is one of the earliest suppliers to support satellite transmission for Abis and A interface because Huawei has successfully solved satellite transmission problems including long time delay, high BER and huge jitter etc.

At present, the A1/A2, Abis, A10/A11 interface of Huawei CDMA system can support satellite transmission. In Tibet and Cambodia, Huawei satellite solution has been used in Abis interface which both have commercial test report. Especially, Operator in Nigeria adopted Huawei satellite solution in C/D interface. And we have tested A1/A2, A10/A11, Abis, C/D, Q, T etc interfaces with satellite broadcast corporation of china.

Satellite transmission is a good choice for network deployed in some special areas such as mountain, desert, grassland, island and so on. Which can fully satisfy networking requirement in different areas for operators.

Excellent Interoperability

As a customer-oriented vendor, Huawei understands that interoperability and openness of a mobile system is very important to our customers. Keeping this in mind, we develop our CDMA2000 solution, which strictly complies with the standards and has excellent compatibility.

By now, Huawei BSS system has passed IOT on NSS with Nortel, Shanghai Bell, Ericsson, Eastcom China, Jinpeng China, etc. At the same time, Huawei NSS also passed IOT on BSS with Nortel, Samsung, Ericsson, Motorola, LG Electronics’ BSS, etc.

Powerful Services Supporting Capability

Huawei CDMA2000 system boasts not only higher access speed, excellent performance and larger capacity, but also the capability to provide attractive services to subscribers.



Besides all the 3GPP2 standard services, the Core Network can also provide customized services, such as Virtual HLR, Magic Ring Back Tone, Economical PPC (without IN), Wireless Public Phone, Integrated Wide Area Centrex, Call Failure Message Notification, etc.

At the same time, Huawei CDMA2000 1X solution provides an open value-added service platform for mobile network operators to get more revenue. New services will be easily supplied on this service platform in the future, which guarantees long-term revenue for operators. The high quality voice services and data services, which are basic parts of a mobile network, are also available.

Wireless Public Payphone: Huawei CDMA system can provide payphone function which is base on wireless intelligent network. The payphone base on WIN has more advantages, such as centralized account, effective theft proof, fast deploy service, than base on other ways upon existing network. At the same time, Huawei CDMA also provide the traditional payphone solution(12kc/16kc/ Reverse Polarity pulse). For calls from wireless payphones or subscribers with private meters, Huawei MSC can send metering pulses for real time charging.

Roaming Restriction: With practical roaming restriction features, Huawei can provide abundant solutions: user zone based roaming restriction, sector based roaming restriction, virtual MSC based roaming restriction and number segment based roaming restriction. These solutions support minimum roaming in one sector, automatic lock after subscriber registered and automatic lock when cell/sector structure changed(e.g. expansion), manual configuration can be minimized with system automatic lock . Operator is able to utilize these features to define different classes of subscriber flexibly based on the roaming restriction.

Customized Ring Back Tone : Huawei provides the CRBT service(replacing the boring “du du” RBT with various popular songs) with a robust platform. And we think that Huawei advanced technologies can bring rich and generous advantages for constructing your flexible, mature and profitable CRBT system.

Integrated, Unified & Convenient Network Management

Huawei iManager M2000 system is an integrated, unified O&M system. It is a powerful platform with friendly Man-Machine Interface (MMI) and operation guide. It also provides various maintenance modes such as remote GUI Client, MML, WEB and TELNET, which guarantee easy and convenient operation. With iManager M2000 system, users can centralize fault management, performance management, configuration and security management for all network elements. The powerful functionalities and convenient operation help operators effectively control and manage their comprehensive and ever-growing networks.



2.5.3 Equipment List

To meet the technical requirement in this project, the following equipment is proposed as shown in Table 2-3. For more details, please refer to the price schedule/list of equipment:

Table 1-3 Equipment List

Network element Capacity Location Quantity (set)

NSS

HLR/AC 650 K subs Khanh Hoa 01

MSC/VLR/ 586.2 K subs Khanh Hoa 01

PDSN 56.1 Mbps Khanh Hoa 01

M2000

M2000 Single Server Khanh Hoa 01

BSS

BSC1 522 TRX(1X) with 16800 TCE Khanh Hoa 01

BSC2 582 TRX(1X) with 17344 TCE Khanh Hoa 01

BTS3606 98

Site location and traffic details of BTS, kindly refer to Radio Network Planning Proposal South Region



3 Equipment Dimensioning and Design Methodology

This section outlines the basis for the system configuration proposed by Huawei to establish the optimum configuration based on the criteria outlined in the RFP.

Table: Existing BTS Information

No Province

Existing after Phase 4

Subs BTS1X

Abis CE TRX1 Lam Dong 60,000 31 36 3104 108

2 Binh Duong 72,200 35 39 3552 117

3 Binh Thuan 60,500 33 37 3232 111

4 Ninh Thuan 38,500 20 23 1792 69

5 Binh Phuoc 45,500 26 28 2368 84

6 Ba Ria Vung Tau 71,000 32 39 3744 117

7 Tay Ninh 56,300 32 34 2880 102

8 Khanh Hoa 50,700 23 26 2656 78

Total 454,700 232 262 23,328 786

Table: Additional BTS in Phase 5

No Province

Added in Phase 5

Subs.1X NEW BTS

Abis CE TRXS111(64)

S111(96)

S111(128)

1 Lam Dong 16,000 12 1,120 36 4 7 -2 Binh Duong 22,000 16 1,632 48 3 11 2 3 Binh Thuan 18,000 14 1,440 42 5 8 1 4 Ninh Thuan 4,500 4 288 12 3 1 -5 Binh Phuoc 15,000 12 1,056 36 7 5 -6 Ba Ria Vung Tau 15,000 10 992 30 3 7 -7 Tay Ninh 18,000 14 1,120 42 7 7 -8 Khanh Hoa 23,000 17 1,504 51 9 5 3

Total 131,500 99 9,152 297 41 51 6

Table: Total BTS information after Phase 5

No Province

TOTAL AFTER PHASE 5

Subs BTS1X

Abis CE TRX1 Lam Dong 76,000 42 48 4,224 144

2 Binh Duong 94,200 51 55 5,184 165

3 Binh Thuan 78,500 47 51 4,672 153

4 Ninh Thuan 43,000 24 27 2,080 81

5 Binh Phuoc 60,500 38 40 3,424 120

6 Ba Ria Vung Tau 86,000 42 49 4,736 147

7 Tay Ninh 74,300 46 48 4,000 144

8 Khanh Hoa 73,700 40 43 4,160 129

Total 586,200 330 361 32,480 1,083



3.1 HLR/AC

3.1.1 Features of HLR/AC

Huawei HLR integrates HLR and AC into one entity and provides all basic functions compliant with CDMA international standards, such as location updating, roaming area management, authentication, and equipment management. It also provides the abundant supplementary services for subscribers, such as call forwarding, call barring, call identification, CUG, etc. In addition, Huawei HLR can act as 50 virtual status in convenient way for HLR operators.

The features of proposed HLR are shown as below, for more feature descriptions please refer to Product Description of HLR.

Large capacity; it simplifies the network structure and saves the operating cost. Huawei HLR/AC can support 1,200,000 subscribers in maximum configuration.

Mature and stable system platform and technologies; it guarantee the service quality of Huawei CDMA system. HLR adopts carrier-level mini server with stable UNIX based OS and the proven ORACLE database system.

High reliability guarantees the quality of operation. Key units adopt 1+1 backup mode, the important units adopt N+1 backup mode. Furthermore, the HLR also adopts High Reliability (HA) dual-system and real-time write function to guarantee the reliability for data.

By supporting abundant functions, , such as virtual HLRs function, the cost of operator is reduced and bring more attractive and variety of services.

In this proposal, one HLR/AC system will be expanded to 650K subscribers. To achieve this capacity, we propose single-module system with the required database server and other equipment. As per the requirements, we support the functions of Centrex, MVPN and Wireless payphone. For details, please refer to BoQ and Function List/Description.

3.1.2 E1 Interfaces and CCS7 Links of HLR/AC

The connection between HLR and MSC is illustrated in ANNEX - FIGURE 2 NETWORK DIMENSION OF CDMA 2000 1X SYSTEM – EVNTELECOM SOUTH

The details are shown in table 3-1

Table 1-4 Physical Interface Dimensions of the HLR/AC

Connected to E1 ( 2M ) CCS7 Link ( 64k )

MSC/VLR 25 104



3.1.3 Physical Dimension of HLR/AC

The detailed dimension of each cabinet is shown as Table 3-2:

Table 3-2 Physical Dimensions of HLR/AC

Item HA Cabinet Assembled Cabinets

Dimension (depth*width*height) 800mm×520mm×2100mm 550mm×800mm×2100mm

Quantity 1 3

Dimension of Assemblage (depth*width*height)

800mm×600mm×2100mm 550mm×2040mm×2100mm

Total Dimension (depth*width*height) 800mm×2640mm×2100mm

Remark: The "Dimension" item shows the dimension of each kind of cabinet. Dimension of side door is covered in the “Subtotal dimension" item rather than in the “Dimension”. The “Total dimension” means the integral dimension of all cabinets.

Floor bearing weight of the equipment room: not less than 400KG/ m².

3.2 MSC/VLR/SSP

3.2.1 Features of MSC/VLR/SSP

Huawei Technologies MSC/VLR/SSP is the most reliable and highest capacity switching platform. Performing the central switching/call processing functions and providing the interfaces to other telecommunications networks, the Huawei switch is built upon a modular architecture which allows smooth and non-service interrupting growth as well as the capability for simultaneous support of multiple applications.

The features of proposed MSC/VLR/SSP are shown as below, for more feature description please refer to Product Description of MSC/VLR/SSP.

High integration, large capacity and low power consumption; It simplifies the network structure and saves the operating cost. For example, MSC supports 100,000 subscribers (0.02erl/sub.) with only three cabinets and 3KW power consumption or 1,000,000 subscribers (0.02erl/sub.) with 9 cabinets and 11kW power consumption.

High reliability; it guarantees the quality of operation. For example, the key units adopt 1+1 backup mode, the important units adopt N+1 backup mode, also MSC internal communication links adopt dual planes and load sharing function, bill system adopts high performance servers to realize dual-system backup and 4-level buffer.

Powerful Signaling and Interfacing Functions: Providing powerful signaling and interfacing functions, the MSC enables the interconnection of equipment made by different manufacturers.

Compliant with TIA/EIA-41E protocol, the MAP interface signaling procedure supports TIA/EIA-41D and is compatible with TIA/EIA-41C protocols.

Compliant with IOS-4.0/4.1 protocol, the A-interface signaling procedure is compatible with IOS-2.0/2.1 and IS-634 and supports 14-bit/24-bit signaling point code and the networking modes of national and national standby networks. It has passed the A-interface compatibility test conducted with many other vendors’ BSS equipment.



The SS7 provided by MSC is in compliance with the standards of former ANSI T1.114 protocol. This ANSI feature is specially developed to cater for the ANSI-based signaling network. It includes ANSI GT and ANSI NI, which enables M800 MSC to support ITU-T SCCP and ANSI SCCP simultaneously and to support ANSI signaling and ITU-T signaling simultaneously.

MSC also provides STM-1-compliant SDH optical/electrical interfaces, via which large capacity of trunk can be led in and sent out through public transmission network. Meanwhile, with SDH optical/electrical interfaces employed, the integration of switching and transmission can be achieved by reducing the Add/Drop Multiplexer (ADM) between exchange and SDH equipment. The STM-1 optical interface/electrical interfaces can be used flexibly based on the transmission distance

Powerful Number Analysis and Multinational Number Adaptation Capability: Being able to accept, save and analyze 24-digit numbers; Providing restriction on minimum and maximum number length; Supporting handling of irregular numbers ; etc. With multinational number adaptation, MSC can process numbers of different formats or attributes as required by different numbering plans of various countries so as to select correct routes for calls.

01 MSC/VLRs is proposed in this project. As per the requirements, the MSC/VLR is capable of supporting Service Switching Point (SSP), Short Message Service (SMS) and more. The interfaces to SCP, SMSC, HLR, PSTN and other MSCs (VMS) have been configured in the MSC/VLRs. In order to support mobile intelligent network for the pre-paid service, the MSC/VLRs are configured with the SSP. We have proposed MSC which can satisfy the requirements of this project. By adding new boards and cabinets (only a maximum of nine cabinets are required), it can be smoothly expanded to 1000k subscribers (based on 0.02 ERL/subs calculation) with only three cabinets or 1,000,000 subscribers (0.02erl/sub.) with 9 cabinets.

MSC can support all IN services.

3.2.2 E1 Interfaces and CCS7 Links of MSC/VLR/SSP

MSC/VLR is connected with several directions, such as BSC and PSTN. Optical interface boards configuration is based on the actual maximum capacity during a busy hour. The details on the dimensions are shown as Table 3-3.

Table 3-3 Physical Interface Dimensions of MSC

Connected toPCM ( 2M ) CCS7 Link ( 64k )

After Phase 4 After Phase 5 After Phase 4 After Phase 5

PSTN 223 287 16 16

Other MSCs 66 84 10 10

HLR/AC 20 25 82 104

PLMN 88 113 8 8

A interface to BSCs 435 559 74 96

VMS 4 4 4 4

SMSC 10 10 10 10

SCP 8 8 32 40



3.2.3 Physical Dimension of MSC/VLR/SSP

The detailed dimension of each cabinet is shown in Table 3-4:

Table 3-4 Physical Dimensions of MSC

Item IMM Cabinet Assembled Cabinets

Dimension (depth*width*height) 800mm×520mm×2100mm 550mm×800mm×2100mm

Quantity 1 6


800mm×600mm×2100mm 550mm×5280mm×2100mm

Total Dimension (depth*width*height)

800mm×5880mm×2100mm

Remark: The "Dimension" item shows the dimension of each kind of cabinet. Dimension of side door is covered in the “Subtotal dimension" item rather than in the “Dimension”. The “Total dimension” means the integral dimension of all cabinets.


3.3 BSC/PCF/IWF(AN)

3.3.1 Features of BSC/PCF/IWF

Huawei BSC can integrate PCF provide packet data service. The IWF channels are processed in BSC and transported to MSC via A interface and then to the external circuit data services systems. The features of proposed BSC/PCF/IWF are shown as below, for more feature description please refer to Product Description of BSC/PCF/IWF.

Huawei CDMA2000 1X/1xEV-DO system is backward-compatible with the IS-95. Both the IS-95 and CDMA2000 1X MS can originate and receive calls normally under the coverage of the CDMA2000 1x/1xEV-DO network. The BSC supports smooth evolution from CDMA2000 1X to the CDMA 1X EV-DO and CDMA 1X EV-DV by means of software update.

Huawei BSC features high integration, large capacity and smooth expansion, helping structure a concise network and save the cost. It supports built-in PCF and IWF as well as standalone IWF.

Support hybrid configuration of CDMA 1X and CDMA EV-DO networks.. Supply 1X and 1X EV-DO service simultaneously.

To meet the capacity requirements of this project, we propose mainly to expand the existing 2 BSCs. The whole BSS system supports 1,104 1X-TRX or 330 BTS.



3.3.2 Interfaces and Links of BSC/IWF

The connection details are shown as Table 3-5a: Connections to BSC1

Interface PCM ( 2M ) CCS7 Link ( 64k )

A interface to BSC1 305 46

Abis interface to BSC1 174 -

Table 3-5b: Connections to BSC2

Interface PCM ( 2M ) CCS7 Link ( 64k )

A interface to BSC2 304 50

Abis interface to BSC2 194 -

3.3.3 Physical Dimension of BSC/PCF/IWF

Physical Dimension of BSC is shown in, Table 3-6a and Table 3-6b

Table 3-6a: Physical Dimensions of BSC1

Item Cabinets

Dimension (depth*width*height) 800mm×600mm×2100mm


800mm×680mm×2100mm

Quantity 6


800mm×4000 mm×2100mm

Table 3-68: Physical Dimensions of BSC2

Item Cabinets



800mm×680mm×2100mm

Quantity 5


800mm×3400 mm×2100mm

Remark: The “Dimension” item shows the dimension of each kind of cabinet. Dimension of side door is covered in the “Subtotal dimension” item rather than in the “Dimension”. The “Total dimension” means the integral dimension of all cabinets.




3.4 BTS

3.4.1 Features of BTS

The Huawei BTS is compatible with IS-95A/B and CDMA2000 1X/1X EVDO, and can be upgraded to CDMA2000 1x EV smoothly. Huawei presents a series of outdoor and indoor BTS to meet the requirements of coverage and capacity. These BTSs provide flexible coverage of cities, expressways, hot spots and blind spots.

BTS3606 can accommodate up to 6 sector-carriers per cabinet and 18 sector carriers per single cabinet with multi-carrier technology. It supports power synthesis, and can combine the power of two power amplifiers, the transmit power measured at the top of the cabinet reaches 50W which can enhance coverage.

Digital transceiver with high sensitivity is adopted in all types of BTS to achieve a better coverage and save the cost

The features of proposed BTSs are shown as below, for more feature descriptions please refer to Product Description of BTS.

1. Huawei CDMA2000 1x system can be simply and smoothly evolved to 1x EV. BTS only need to add 1x EV channel processing board and upgrade the software which is guaranteed by Huawei CDMA2000 1X BTS advanced hardware design. The operator will greatly benefit from the reduced investment, minimized impact on the on-line services.

2. Huawei CDMA BTS family provides the total coverage solution according to the population distribution and different landform, applicable to coverage of urban areas, hot spots, countryside, suburbs, highways and multi-layer buildings, to provide the best service for customer.

3. Indoor Macro BTS3606 is suitable for medium population density areas. It can provide up to 18 carriers per cabinet with multi-carrier technology and support wide coverage solutions by providing up to 50W output power, which strongly enhances the coverage radius. BTS3606 provides -48V or +24V DC input.

4. Huawei BTS adopts a highly linear power amplifier and a built-in high performance filter, the advantage hardware design of BTS guarantees co-site construction with different frequency point BTS, such as GSM BTS. It can save the equipment room, iron tower and the transmission E1 trunks, speed up installation and save the investment.

5. BTS also supports fractional E1 transmission, thus sharing one E1 of existing BTS from different technologies.

6. Adopt patent intelligent software phase lock technology and built-in high precision crystal-oscillator to enhance stability of clock. Huawei BTS can keep working for more than 48 hours when losing satellite synchronization, which ensures the secure operation in emergency cases.

As per the requirements in tender document, to provide the required geographical coverage for the network, Huawei has proposed its widely used BTS series with installation equipment. BTS3606 is proposed to be used with –48V DC power supply.



3.4.2 Configuration Summary

The configuration, site location and traffic details of each BTS can be found “Radio Network Planning Proposal of South Region”

3.4.3 Physical Dimension of BTS

The physical dimension of different BTS is shown in Table 3-8.

Table 3-8 Physical Dimensions of BTS3606

Item Dimension (depth*width*height)

BTS3606 Cabinet 650mmx600mmx1400mm


3.5 PDN

3.5.1 Features of PDSN/AAA/AN-AAA

PDSN9660 is of packet data domain entity in CDMA system. It’s a gateway between Packet Data Network (PDN) and the CDMA2000 system and mainly comprises of, AAA/AN-AAA server, PDSN subrack, MIP HA server, LAN Switches and firewalls. The interface between AAA server and PDSN conforms to the standard IP protocols. PDSN is connected to upper system internet directly, and is connected to lower system PCF via A10/A11 interfaces. In this way, CDMA system provides high speed packet data service for subscribers.

Generally, the capacity of PDSN can reach 3Gbps in maximum, the AAA Server(from Capital company) adopts SUN Netra240 platform and the maximum capacity is 1000,000 subs. For special capacity demand, the AAA Server platform can be changed for sake to support the required capacity in terms of subscribers. The AN-AAA of BSC for EVDO is integrated with the AAA physically.

Huawei PDSN9660 meets the requirements of all standards wireless IP protocols, and comes with some advanced and expanded features, including:

Optimized PDSN selection

Support data packet prepaid service

Support mobile and simple IP networking

A maximum configuration can support a total of 300,000 PPP connections.

Supporting Stac LZS compression, Van Jacobson TCP/IP header compression and MPPC for CCP negotiation.

Supporting IP VPN services (GRE, L2TP and MPLS).

Providing Differentiated Services (Diff-serv) based Quality of Service (QoS). Supporting QoS marking, traffic classification, traffic policing, traffic shaping, queuing, congestion control and IP policy routing.

Detecting and isolating of PDSN fault



Minimized PDSN switching requirements

1+1 and 1:1 Hot-backup for the Key Boards

Support of PDSN redundancy

Fast re-register within PDSN

Beside the above features, Huawei PDSN9660 offers rich physical interfaces :

Fast Ethernet interface (FE, 10/100Mbit/s)

Gigabit Ethernet interface (GE, 1000Mbit/s)

Packet Over SDH interface(POS, 155/622/Mbit/s, 2.5Gbit/s)

Asynchronous Transfer Mode interface (ATM, 155Mbit/s)

For more feature descriptions of PDSN, please refer to Product Description of PDSN.


The proposed PDSN9660 hardware is designed for the system according to the capacity of this project. The proposed PDSN can supports 56.1 Mbps data processing and 16,194 PPP Session in total, and can be smoothly expanded to a PDSN of larger capacity.

The performances of the proposed PDSN are shown in Table 3-9 Performance values of PDSN in Phase 5

Parameters Value

Simultaneously active PPP connections 16,194

Maximum throughput (Mbps) 56.1 Mbps

3.5.3 Physical Dimension

The physical dimension of PDSN is shown in Table 3-10.

Table 3-10 Physical Dimensions of PDSN

Item Cabinets



800mm×680mm×2200mm

Quantity 2

Total Dimension (depth*width*height) 800mm×1360mm×2200mm

Remark: The “Dimension” item shows the dimension of each kind of cabinet. Dimension of side door is covered in the “Subtotal dimension” item rather than in the “Dimension”. The “Total dimension” means the integral dimension of all cabinets.




3.6 OMC

3.6.1 Features of iManager M2000

Huawei iManager M2000, i.e. the mobile network integrated Operation&Maintenace system, is a complete set of network management solution launched by Huawei. iManager M2000 is intended to support Huawei CDMA2000(GSM/WCDMA can be shared with the same iManager in May, 2005) series products. Besides, it supports the access to various types of equipment, and provides centralized and unified network management of these mobile equipment. Meanwhile, iManager M2000 provides the standard CORBA interface to its upper-level NMS to support multilevel network management system and it can also provide SNMP interface in May 2005. It provides O&M of any network element through any of its workstations. M2000 provides multiform alarm modes: sound alarm, light alarm, alarm on O&M terminals and alarm on printers, which can monitor the real-time running status of system. The features of proposed M2000 are shown as below, for more feature descriptions please refer to Product Description of iManager M2000.

1. Powerful built-in signaling tracing function can cut down the cost for external tracing equipment.

Signaling tracing function for all interfaces, such as Abis, Um, A3/A7, A8/A9, and A10/A11 and so on.

Tracing status of designated user.

2. Convenient O&M function can enable the operator to process system operation and maintenance easily.

Alarm analysis function prevents similar alarms from occurring and locates the fault accurately, which improves the efficiency in fault handling for the operator.

Alarm knowledge database shares the success experience of operation and maintenance. When the alarm is handled successfully, the system will store the handling method in the database automatically.

Detailed online help, a patient helper in anywhere.

Convenient O&M language, including Man-Machine Language (MML) and Graphic User Interface (GUI). MML allows fast implementation for skilled engineers. GUI is a vivid graphical O&M interface based on electronic map, That benefits beginners a lot. It can display the sector and carrier information graphically and performance alarm information on real-time basis.

3. Flexible statistic and report present customized statistic tables, such as user-defined statistic items or time period, as well as abundant, customized, standard report templates.

4. Realizing subnet maintenance via standard upper-level Network Management interfaces. It realizes maintenance for the whole system.

Supporting core database interface and standard CORBA interface.



Subnet maintenance includes subnet alarm report and performance report. Standard upper-level NM interface realizes united maintenance between different vendors.

5. Supporting redundant function for convenient operations, such as software on-line patching, business hall interface function, remote dial-up operation and maintenance. Hot-swappable boards and modules, RF module blind mating and BTS configuration data are uploaded to BSC during the hardware maintenance.

6. The system features high security. In the system, flexible management of the user authority can be implemented by means of dividing Nes into subnets, setting the entire-network manager, subnet manager, entire-network/subnet ordinary users. Illegal intrusion to the network can be avoided through the ID authentication upon user login and logout. Meanwhile, to enhance the data security, the system also provides the data backup and restoration functions, and encrypts the data before transmission.

7. The system provides powerful intelligent report tool which allows users to customize the report design. Besides, it provides several performance and configuration report templates. Several report output modes are available so that users can obtain the system data for various operations and maintenance.


M2000 system configuration details are shown Table 3-11

Location M2000 ServerRemote Access Server

O&M Terminal

Alarm Terminal

Central Room in Khanh Hoa city

One set of Single Server 1 3 10



4 Power System

4.1 Power Consumption

In this offer, the proposed HLR, MSC/VLR, BSC and PDSN will be powered by -48 V DC and M2000 equipment by 220 V/50 Hz AC.

Huawei equipment design rules and configuration recommendations lean towards the solution for power expansion with additional rectifiers and batteries, so that system power is sustainable during high load.

Without such sustainability, the under-dimensioned power system will suffer from severe risks. The power distribution system might overload prematurely and cause the rectifier to shutdown in order to protect itself from overheating. The breaker would then be activated and the system goes into battery backup mode. Such an occurrence greatly diminishes the reliability of the power system and frequently exhausts backup power.

The DC/AC power consumption and heat dissipation in busy hour is shown as below:

4.1.1 Equipment Room in Khanh Hoa province

The power consumption of equipment room in Khanh Hoa city is shown in Table 4-1.

Table 4-1 Central Room equipment’s Power Consumption Statistics

EquipmentPower Consumption ( Watt ) Heat Dissipation

( Kcal / Hour )DC ( -48 V ) AC ( 220 V/50 Hz )

MSC/VLR 7951 – 6520

HLR/AC 3095 1000 2537.9

BSC1 12109 – 9930

BSC2 9618 – 7887

M2000 – 3620 2968.4

PDSN 1420 300 1165

HA 1270 – 1042



4.1.2 BTS Rooms

The DC power consumption and heat dissipation of BTS in busy hour is shown in Table4-2. The subsequent tables indicate the power consumption for transmission equipment.

Table 4-2 BTS Power Consumption Statistics

BTS typePower Consumption ( Watt )

DC ( -48 V ) AC ( 220 V/50 Hz )

BTS3606 S111 1053 -

Table 4-3 Power Configuration of METRO1000

DC Power Supply (V) DC Power Capacity (W)

-48 100

Table 4-4 Power Configuration of OSN2500


-48 150

Table 4-5 Power Configuration of OSN3500


-48 180



4.2 Power Equipment

According to the requirement of the tender document, Huawei offers power system in this project. The power system is normally composed of three main parts, i.e. DC power system, battery system and UPS/inverter.

4.3 Power Equipment

According to the requirement of the tender document, Huawei offers power system in this project. The power system is normally composed of three main parts, i.e. DC power system, battery system and UPS/inverter.

4.3.1 Power System in Khanh Hoa province

The following power consumption values and equipment configurations are obtained from on-site measurements conducted by Huawei.

Table 4-6 Present Subscriber Count of Khanh Hoa Central Room

Configured Subscriber Number (in Phase 4)

Current Subcriber Number (19/11/2007)

% Capacity Used

454700 171094 37.63%

Table 4-7 Present Power Configuration of Khanh Hoa Central Room Power System

Calculated Power Consumption (in Phase 5)

Configured Power Supply (in Phase 4)

Total Measured Current (Ah)

Power Consumption (W)

% Power Used

35463 38000 360 17280 45.47%

Table 4-7 shows the maximum supported power consumption which the configured power supply is able to support as previously set in Phase 4. The total measured current when combined with the absolute value of -48V and 8 hours of backup time, the present power consumption is obtained. Since the central room equipment is not operating at 100% capacity, the amount of power consumed is also much lower. so the power supply configured in Phase 4 is able to support power consumption values in Phase 5.

4.3.2 Power System for BTS

The Power system for BTS differs from that for switching room. Generally, it contains DC power system and battery. In this project, 98 new BTS3606 S111 are proposed.

Configuration of Power System BTS3606

Configuration Summary of DC Power System

Table 0 Power Configuration of S111-type BTS Power System



DC Power Supply (V)

DC Power Capacity (W)

Backup Time (Hour)

-48 1053 8

Table 0 Power Configuration of S222-type BTS Power System

DC Power Supply (V)

DC Power Capacity (W)

Backup Time (Hour)

-48 1197 8

Configuration Summary of Battery

Table 0 Battery Configuration of BTS Power System

Backup Time (Hour)

Number of Battery Banks

Capacity per Battery Bank (AH)

8 2 100

Table 0 Battery Configuration of BTS Power System

Backup Time (Hour)

Number of Battery Banks

Capacity per Battery Bank (AH)

8 2 150

Refer to the example in ANNEX 3 for an example on battery dimensioning

Physical Dimension

The physical dimension of DC system for BTS3603 S111 is shown in Table 0.

Table 0 Physical Dimensions of BTS Power System

Item Cabinets


Number of Cabinets 1

Subtotal Dimension (depth*width*height) 600mm×600mm×1600mm



4.3.3 Power Measurements by EVN Telecom

The following power consumption values and equipment configurations are obtained from measurements conducted by EVN Telecom.

Existing load current = 320 A

Number of Rectifiers = 14

Equivalent current output from rectifiers = 100A * 14

= 1400A.

Existing battery capacity in use = 7800 Ah

Existing new banks of battery (from Phase 4, unused) = 2 * 2600Ah

= 5200Ah

Based on EVN Telecom’s present loading,

Calculated backup time after Phase 4, T = (C*K) / (I*1.25)

= (13000*0.85) / (320*1.25)

= 27.6 hours

Additional loading current in Phase 5 due to MSC, HLR & BSC ≈ 50 A

Calculated backup time after Phase 5, T = (C*K) / (I*1.25)

= (13000*0.85) / (370*1.25)

= 2 3 .9 hours



4.3.4 Power Measurements by Huawei

The following power consumption values and equipment configurations are obtained from on-site measurements conducted by Huawei.

Table 0 Present Subscriber Count of Khanh Hoa Central Room

Configured Subscriber Number (in Phase 4)

Current Subcriber Number (19/11/2007)

% Capacity Used

454700 171094 37.63%

Table 0 Present Power Configuration of Khanh Hoa Central Room Power System

Configured Power Supply (in Phase 4)

Total Measured Current (Ah)

Power Consumption (W)

% Power Used

38000 360 17280 45.47%

Table 4-15 shows the maximum supported power consumption which the configured power supply is able to support as previously set in Phase 4. The total measured current when combined with the absolute value of -48V and 8 hours of backup time, the present power consumption is obtained. Since the central room equipment is not operating at 100% capacity, the amount of power consumed is also much lower.

Comparing Table 4-15 with the values listed in Table 4-6, the power supply configured in Phase 4 is able to support power consumption values in Phase 5.



5 Summary

In this document we provide a solution proposal for EVNTelecom. There are basic descriptions for equipment configurations in this proposal. For detailed description of equipment please refer to corresponding system description and function description files. This technical proposal for EVNTelecom presents the basic descriptions for the network configuration.

As requested by EVN Telecom, relevant explanations and configuration recommendations in equipment dimensioning, specifically related to BSC and power equipment, are included in this technical proposal. In the event that EVN Telecom ultimately decides to pursue alternatives deviating from Huawei’s recommended configuration, Huawei would like once more highlight the risks of pursuing such a notion and that Huawei is not liable for such risks should it occur.

As an innovative and reliable vendor in the telecommunication industry, Huawei is dedicated to deliver a robust, powerful and cost-effective CDMA2000 1X and 1X EV-DO system for EVNTelecom with the state-of-the-art products and value-added services and even more. A stable and long-term cooperation is the commitment that Huawei always believes in.



ANNEX 1. Abbreviations

3GPP2 3rd Generation Partnership Project 2

AAL ATM Application Layer

AAL2 ATM Application Layer 2

AC Authentication Center

AN Access Network

AT Access Terminal

ARFCN Absolute Radio Frequency Channel Number

ASIC Application Specific Integrated Circuit

ATM Asynchronous Transfer Mode

BAM Back Administration Module

BHCA Busy Hour Calling Attempt

BSC Base Station Controller

BSSAP Base Station Subsystem Application Part

BSSMAP Base Station Subsystem Management Application Part

BTS Base Transceiver Station

CC Call Control

CCITTConsultative Committee of International Telegraphy and Telephony

CDMA Code Division Multiple Access

CMM Capability Maturity Module

DBMS Data Base Management System

DDN Digital Data Network

DRF Dormant Reduction Factor

DTAP Direct Transfer Application Part

EIB Erasure Indicator Bit

EMC Electro-Magnetic Compatibility

ETSI European Telecommunication Standards Institute

EV-DO Enhance Voice & Data Optimization

FA Frequency Allocation

FE Fast Ethernet

FER Frame Error Rate

GE Gigabit Ethernet

GLONASS Global Navigation Satellite System

GPS Global Position System

GUI Graphic User Interface

HDB HLR Database

HHO Hard Handover

HLR Home Locate Register

IMM Integrated Management Module



IOS Interoperability Specification

IOT interoperability testing

IP Internet Protocol

IPC Inter-process Communication

IS-2000 Interim Standards 2000

IS-95 Interim Standards 95

ISDN Integrated Services Digital Network

ISO International Standards Organization

ITU International Telecommunications Union

ITU-T ITU Telecommunication Standardization Sector

IWF Interworking Function

LAN Local Area Network

MM Mobility Management

MML Man Machine Language

MS Mobile Station

MSC Mobile Switching Center

MTBF Mean Time Between Failures

MTP Message Transfer Part

NSS Network Subsystem

NMC Network Management Centre

NMS Network Management System

OMC Operation & Maintenance Center

OMC_T OMC Terminal

OML Operation & Maintenance Link

OOP Object-Oriented Programming

OSI Open System Interconnection

O&M Operation and Maintenance

PCF Packet Control Function

PCM Pulse Code Modulation

PDSN Packet Data Service Node

PLMN Public Land Mobile Network

PN Pseudo Number

PPP Peer-Peer Protocol

PSTN Public Switched Telephone Network

QoS Quality of Service

SCCP Signaling Connection and Control Part

SDH Synchronous Digital Hierarchy

SDU Selection/Distribution Unit

SHO Soft Handover

SMS Short Message Service

SMSC Short Message Service Center

SPU Signaling Processing Unit



SSP Service Switching Point

TCP Transport Control Protocol

TRX Transceiver unit

VLR Visitor Location Register

WAN Wide Area Network



ANNEX 2. Network Diagram

ANNEX 2 - FIGURE 1 NETWORK STRUCTURE OF CDMA 2000 1X SYSTEM – EVNTELECOM SOUTH

ANNEX 2 - FIGURE 2 NETWORK DIMENSION OF CDMA 2000 1X SYSTEM – EVNTELECOM SOUTH

ANNEX 2 - FIGURE 3 O&M NETWORK STRUCTURE – HUAWEI M2000 SYSTEM



ANNEX 3. BSC Dimensioning Notes

T he R elationship between TCE & Traffic E rlangs

The relationship of TCE and traffic erlangs can be clearly explained through the ErlangB formula.

Traffic Channel Element (TCE) is defined as a channel which carries traffic.

Traffic Erlang is known as a unit of channel occupations ratio in an hour and dimensionless. 1

The above relationship is defined by the ErlangB ratio whereby Grade of Service (GoS) is also known as the blocking probability.

ErlangB ratio Formula:

erlangB ( erlang , GoS ) = channel quantity

erlangB ( channel quantity , GoS ) = erlang

The handoff operation applies when clustering adjacent cells to enable voice continuity.

1 An Erlang is a unit of traffic density in a telecommunications system. One erlang is the equivalent of one call (including call attempts and holding time) in a specific channel for 3600 seconds in an hour. The 3600 seconds need not be, and generally are not, in a contiguous block.



BSC Technical Specifications from Product Description of BSC6600 (V2R1)

Reference Traffic Model

Item Performance

Mean busy hour traffic of subscriber 0.025 Erl

Mean call duration of subscriber 60 s

Mean busy hour traffic of trunk 0.8 Erl

Mean call duration of trunk 60 s

System Performance

Item Performance

Voice traffic

A interface over TDM:

9,600 Erl

600 Erl (single subrack)

Integrated busy hour call attempt (BHCA) 960,000

Number of air interface channels 21,600 TCEs

Number of A interface E1/T1 ports 512

Number of Abis interface E1/T1 ports 512

Number of CDMA 1X carriers 1,536

Number of CDMA 1xEV-DO carriers 768

Number of PPP connections for packet data service

240,000

Number of PPP connections can be activated at the same time for packet data service

10,000

Packet data throughput 400 Mbit/s

CIPS Subrack & Boards C apacity Parameters:

Each AIE board supports 32 E1.

Each BIE board supports 32 E1 or 1350TCE.

Each FMR board supports 450 TCE.

There are 42 TCE in a single BIE board, averaging per timeslot.

Each EVD board supports 256 channels.



Calculations & Details on BSC Dimensioning (Example)

The BSC is governed by the maximum supported TCEs, traffic Erlangs, A interface E1, Abis interface E1 and signaling processing board (SPU) capability.

The number of 1X CIPSs can be calculated according to the following formula:

Number of 1X CIPSs = Max ( , ,

, , , )

To calculate for DO CIPS,

Number and capacity of DO CIPSs are subject to the system capacity. For large-capacity CBSC, the maximum capacity of a full-configured DO CIPS is as follows: DO forward data service: 80 Mbps E1/T1 cables: 64 links (for the Abis interface) DO carriers: 192 carriers

The resource of CFMR in the DO CIPS can be shared by other modules. The number of DO CIPSs can be calculated according to the following formula:

Number of DO CIPSs = Max { , ,

}

The maximum number of DO CIPSs in a large-capacity CBSC is 4 PCS. Additional one or more CBSCs are required to accommodate more than 4 DO CIPSs



In the Phase 4 Project, BSC1 in Da Nang has total TCE is over-dimensioned.

A bottleneck exists at CSPU board signaling processing of 600Erl (BSC V2R2 and later versions enable higher processing of 750Erl and BHCA of BSC will be taken into consideration in dimensioning BSC, by introducing the CSPUb board).

Considering the BIE board capacity of 1350TCE with 35% reserve for handover, the net TCE is 877 per CIPS. BSC1 in Da Nang has a total of 15 CIPS configured at the end of Phase 4.

Total BIE abis E1 interface = 32 E1

Total BIE capacity = 877 TCE

Total erlang supported by BIE = 887 Erlang

Total subscriber supported in Abis = 44,331 Subs

Total Erlang at A interface does not have handover restriction.

Total AIE E1 interface = 32 E1

Total Channels via AIE E1 = 992 TCE

Total Supported Erlangs at A interface = 1,000 Erlang

Total Subscribers supported in A interface = 50,007 Subs

Overall, the bottleneck originates from the CSPU processing level. Refer to the side for an illustration of a single CIPS frame display. Note the CSPU exists as a pair of boards.

Unfortunately, due to the restriction on CSPU of able to process a maximum of 600Erl of traffic signaling (per CIPS of 600Erl capability).

Equivalent Supported TCE for CSPU = 613 TCE

Supported Subscribers per CIPS = 30,000 Subs

Comparing this to the former calculations, the bottleneck is clearly shown whereby the bottleneck of BSC capacity is govern by CSPU.


Slot number (CIP 0)0 CBIE

1 CFMR

2 CFMR

3 CFMR

4 CIWF

5 CEVD

6 CEVD

7 CMUX

8 CMUX

9 CEVD10

CEVD

11

CLAP

12

CSPU

13

CSPU

14

CIWF

15

CAIE/CSTU


Thus, total subscriber capacity for BSC in Da Nang is 450,000 subscribers (at 15 CIPS).

The above calculation is applicable to voice traffic. The above are calculated according to Erlang, namely the behavior of subscriber and handling of traffic in an hour.

By upgrading from BSCV2R1 to V2R2 or V2R3, the exchange of board CSPU to CSPUb will enhance capability of BSC traffic handling, specifically to 750Erlang (V2R2) and 1250Erlang (V2R3 using IP for A interface)

Equivalent supported TCE for CSPUb = 761 TCE (BSC V2R2)

Subscriber support per CIPS = 37,500 Subs

Equivalent supported TCE for CSPUb = 1255 TCE (BSC V2R3)

Subscriber support per CIPS = 62,500 Subs



Calculations & Details on BSC Dimensioning in Phase 5

In this Phase 5 Project, the core network in Khanh Hoa is dimensioned based on existing configuration and Phase 5 expansion requirements. The following tables outlines the dimensioning details.

　No

　Province

TOTAL AFTER PHASE 4 & CONGESTION PROJECT

Subs BTS

Abis CE TRX ConnectedTo1X 1X 1X

1 Binh Duong 72200 35 39 3808 117 BSC2 New

2 Binh Phuoc 45500 26 28 2368 84 BSC2 New

3 Tay Ninh 56300 32 34 2880 102 BSC2 New

4 Lam Dong 60000 31 39 3360 117 BSC1 Old

　 To BSC2 174,000 93 101 9,056 303 　5 Binh Thuan 60500 33 38 3392 114 BSC1 Old

6 Ninh Thuan 38500 20 23 1984 69 BSC1 Old

7 Vung Tau 71000 32 39 3744 117 BSC1 Old

8 Khanh Hoa 50700 23 29 3168 87 BSC1 Old

　 To BSC1 280,700 139 168 15,648 504 　Total 454,700 232 269 24,704 807

　No

　Province

PHASE 5 NEW ADDITIONS

Subs. BTSAbis E1 CE TRX

1x 1X 1X

1 Binh Duong 22,000 16 16 1,632 48 2 Binh Phuoc 15,000 12 12 1,056 36 3 Tay Ninh 18,000 14 14 1,120 42 4 Lam Dong 16,000 11 12 1,120 36 　 To BSC2 71,000 53 54 4,928 162

5 Binh Thuan 18,000 14 14 1,440 42 6 Ninh Thuan 4,500 4 4 288 12 7 Vung Tau 15,000 10 10 992 30 8 Khanh Hoa 23,000 17 17 1,504 51 　 To BSC1 60,500 45 45 4,224 135

Total 131,500 98 99 9,152 297



　No

　Province

TOTAL AFTER PHASE 5

Subs BTSAbis CE TRX Connected

To1X 1X 1X

1 Binh Duong 94,200 51 55 5,440 165 BSC2

2 Binh Phuoc 60,500 38 40 3,424 120 BSC2

3 Tay Ninh 74,300 46 48 4,000 144 BSC2

4 Lam Dong 76,000 42 51 4,480 153 BSC2

　 To BSC2 305,000 177 194 17,344 582 　5 Binh Thuan 78,500 47 52 4,832 156 BSC1

6 Ninh Thuan 43,000 24 27 2,272 81 BSC1

7 Vung Tau 86,000 42 49 4,736 147 BSC1

8 Khanh Hoa 73,700 40 46 4,672 138 BSC1

　 To BSC1 281,200 153 174 16,512 522 　Total 586,200 330 368 33,856 1,104

Previously, BSC1 in Khanh Hoa is configured with 14 1X CIPS modules (CSPU board supports 600 Erl) with 42 CFMR boards. In other words, BSC1 is configured to be able to support up to

Maximum Supported Subscribers in Phase 4 BSC1 configuration = 420,000Subs

Maximum Supported TCE in Phase 4 BSC1 configuration = 18,900 TCE

In Phase 5, BSC1 in Khanh Hoa is required to be configured to support the following parameters.

Required Supported Subscribers in BSC1 in Phase 5 =281,200Subs

Configuration in Phase 5 satisfies subscriber capacity requirement of 281,200 Subs.

Using the ErlangB device formula, configuration in Phase 5 satisfies equivalent TCE requirement of 5551 TCE (without handoff), or 8605 TCE (with handoff), which is satisfied.

Since both subscriber capacity and required supported TCE are met, BSC1 in Khanh Hoa remains configured with 14 1X CIPS boards and 42 CFMR boards.



Previously, BSC2 in Khanh Hoa is configured with 11 1X CIPS modules (CSPU board supports 750 Erl) with 31 CFMR boards. In other words, BSC1 is configured to be able to support up to

Maximum Supported Subscribers in Phase 4 BSC2 configuration = 412,500Subs

Maximum Supported TCE in Phase 4 BSC2 configuration = 13,950 TCE

In Phase 5, BSC1 in Khanh Hoa is required to be configured to support the following parameters.

Required Supported Subscribers in BSC2 in Phase 5 = 305,000 Subs

Configuration in Phase 5 satisfies subscriber capacity requirement of 305,000 Subs.

Using the ErlangB device formula, configuration in Phase 5 satisfies equivalent TCE requirement of 6018 TCE (without handoff), or 9328 TCE (with handoff), which is satisfied.

Since both subscriber capacity and required supported TCE are met, BSC2 in Khanh Hoa remains configured with 11 1X CIPS boards and 31 CFMR boards.



ANNEX 4. MSC Dimensioning Notes

T he R elationship between TCE & Traffic E rlangs

T he Dimensioning of OSTU boards in MSC

With reference to Table 3-3, the MSC is able to be configured to connect to PSTN, PLMN and other MSCs via STM-1. Thus, in Phase 5, the MSC in Khanh Hoa has 484 out-going E1s in total which will be implemented using STM-1.

Connected toPCM ( 2M )

After Phase 4 After Phase 5

PSTN 223 287

PLMN 88 113

Other MSCs 66 84

Each OSTU board supports 63 E1. Therefore, the number of required OSTU boards is calculated using the following formula:

Total OSTU boards = ROUNDUP( (Total E1s using STM-1) / 63 , 0 )

= ROUNDUP( 484 / 63 , 0 )

= 8 OSTU boards



ANNEX 5. Power System Notes

Battery Dimensioning Example

A typical BTS site would consist of BTS equipment & transmission equipment. Therefore, the main equipment which consumes power are the BTS3606 & METRO1000.

Absolute value of DC Power Supply = 48V

BTS3606 (S111) Power Consumption = 1053W

METRO1000 Power Consumption = 100W

Total Power Consumption = 1153W

Total Current Generated per hour = 24.0208A

Chosen battery configuration consist of 2 battery banks with each bank 100Ah.

Calculating the expected backup time, we obtain

= ( 2 * 100 Ah ) / 24.0208

= 8.3261 hours

Required Backup time = 8 hours

Therefore, required backup time is satisfied without compromising adequate power supply to site equipment.



Comparison between PS48300/30 & PS48300/1800 Power Systems

In Phase 4 Project for EVN Telecom, the power supply used for BTS application was PS48300/30 supplied by Emerson Network Power.

In Phase 5 Project for EVN Telecom, the power supply used for BTS application is PS48300/1800 supplied by Emerson Network Power.

The power supply system PS48300/30 will be phased out by Emerson at March 2008. Therefore, Huawei has chosen to replace the power supply model with Emerson’s current power supply model PS48300/1800. The following table briefly lists the main differences between both power systems.

　 PS48300-1A/30 PS48300/1800-X6

System Architecture

Same asPS48300/1800-X6

Same asPS48300-1A/30

Controller Model

PSM - A10 M500D - SCU

Rectifier Model

HD4830 – 3 R48 -1800

Basically, the new system PS48300-1800 uses GBB (Global Building Blocs) including 30A rectifier module R48-1800 and controller module M500D. These new modules are much better than the previous model's modules, namely 30A rectifier module HD4830 and controller module PSM-A10, in terms of efficiency, compactness and functionality.



The following tables lists major feature comparisons between the previous controller model PSM - A10 & the current controller model M500D-SCU used in Phase 5.

Function M500D-SCU PSM-A10

Local Display Yes (128*64) Yes (2 lines)

Web No No

SNMP No No

EEM protocol Yes No

SOC/TPE protocol Yes No

YDN 23 protocol Yes No

Active Alarms on LCD Yes Yes

Alarm History Yes 200 No

Statistics/Logs Basic battery log No

PLC function AND/OR/XOR No

Firmware download No No

Energy Savings No No

Alarm relay output Yes 8 Yes

Power Split No No

SM Support No No

Temp charging Yes Yes

Boost charging Yes Yes

Battery current limitation Yes Yes

Battery discharge testConstant Current /

Voltage levelConstant Current /

Voltage level

Battery prediction Yes No

Battery tables 10 No

Current walk in settings Yes Yes

External alarm inputs 8 No

LVD 1 1

System Voltage Yes Yes

Battery Currents Yes 2 Yes 2

Battery Fuse Input 4 4

Distribution Alarm Inputs 10 5

Distribution Currents 1 1

Temperature Sensor 2 1



The following tables lists major feature comparisons between the previous rectifier model HD4830-3 & the current rectifier model R48-1800 used in Phase 5.

　 R48-1800 HD4830-3 Advantage of new system

Input Voltage Window 85 to 300 VAC 90 to 290 VAC

Wider input voltage window

Power factor 0.99 0.99 -

Output voltage -42 to -58 VDC -42 to -58 VDC -

Output power 1800W 1740WHigher power

output

Max output current

35.4A 33AHigher output

current

Efficiency 91% 90% Higher efficiency

Temperature range -40 to +80 oC -5 to +45 oC

Higher operating temperature

RH(con-condensing)

0 to 95% <95% -

EMC EN 300 386:200 Class B EN55022 Class A Better EMC

Safety IEC / EN/ UL60950 CE / EN/ UL60950 -

Dimensions 86 (H) x 84.5 (W) x 272 (D) mm 132 (H) x 86 (W) x 330 (D) mm Smaller size

Weight 1.8 kg 3 kg Lighter

For detailed information regarding to both power systems, refer to the relevant Product Description document.


20071204-phase 5 - south area - technical proposal for core network expansion

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