Siemens A50 Bedienungsanleitung

Local Service Organization Service Manual

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Table of Content

CHAPTER 1

Cellular Communication

Coverage Concept 2

GSMNetworkArchitecture 3

Subscriber Identity Module 4

SIM Application Toolkit 5

Extended GSM 900 - EGSM 5

WAP 6

CHAPTER 2

Level 2 Service Guide

Introduction 7

General Information 7

Different between A50 and 1168 7

A50 Series Technical Information 8

Accessories 10

A50/1168 Mechanical Diagram 12

Mechanical Concept 13

A50/1168 Spare Parts Level 1 & Level 2 14

Disassemble the A50/1168 15

Assemble the A50/1168 19

Mobile Software Programming 22

Customer Specific Initialization 25

International Mobile Equipment Identity 25

Phone Unblocking 26

Internet Solution 27

CHAPTER 3

Siemens Service Equipment

Introduction 28

Other equipment 30

Software Installation 31

Configuring the test software 32

Running the test sequence 33

ANNEX A – Test SIM Information 37

ANNEX B – Service Equipment List 38

Cellular Communication

Coverage Concept.

he cellular systems is made up of numerous transmitting and receiving sites, whose

individual coverage areas partially overlap. The concept of frequency re-use, same

frequency is used by several sites, allows a high traffic density in a wide area. Due to the

limited transmission range of the terminals, cellular systems are based on a large

number of base stations on the infrastructure side, scattered over the area to cover, with each

covering a fairly small geographical zone called cell. Cells are often represented by hexagons

(see figure 1.1.).

FIGURE 1.1 CELLULAR COVERAGE REPRESENTATION.

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GSM Network Architecture.

GSM network can be broadly divided into three broad parts, namely:

1. Mobile Station(MS) carried by the subscriber,

2. Base Station Sub-system(BSS) which controls the radio link with the mobile station.

3. Mobile Switching Center(MSC) which performs the switching of calls between the mobile

users, and between mobile and fixed network users.

FIGURE 1.2 GSM ARCHITECTURE

Each mobile station is given a unique identity. As soon as the mobile phone is turned on, it

registers with the network and is authenticated; as such the network could always find the mobile

phone.

Larger amount of data is being exchanged to and from the following functional blocks in the MSC:

Visitor Location Register, VLR

Stores information about mobile subscribers that enter it coverage area, which is associated with

the geographical area where the mobile is currently roaming. When there is an incoming call for

the mobile, the HLR is interrogated about the present address of the VLR.

Home Location Register, HLR

A database that contains all data concerning the subscription of the mobile subscriber, i.e. their

access capabilities, subscribed services, and supplementary services. It also contains information

about the VLR that is handling the mobile station currently. When the mobile changes location,

the HLR is updated accordingly. It also provides the MSC with information about the MSC area

where the mobile is actually located to allow incoming calls to be routed immediately to the called

party.

Authentication Center, AUC

Stored information that is necessary to protect communication through the air interface against

any intrusions. The legitimacy of the subscriber is established through authentication and

ciphering, which protects the user information against unwanted disclosure.

Equipment Identity Register, EIR

An option the network operator can use to enforce security. With this feature the network can

identify defective or stolen mobile that may not be used in the network.

Subscriber Identity Module (SIM)

SIM is a smart card, which has a computer, and memory chip that is permanently installed in the

mobile equipment. It comes in either the size of a credit card or smaller version known as the

plug-in SIM.

The subscriber information, which includes a unique number called the International Mobile

Subscriber Identity (IMSI) is stored in the SIM card. SIM card identifies the subscriber to the

network.

To protect the SIM card from improper use, a security feature, a four digits personal identification

number (PIN), is built in. The PIN is stored in the SIM card and can be changed by the

subscriber. PIN2 is required for additional functions available with a special SIM card (Consult the

operator for more information about the PIN 2).

A code (PUK) is provided for unlocking the SIM card if the SIM card is blocked

SIM Application Toolkit

This is a new GSM feature that has been integrated into the GSM standards in Release 96, with

further enhancements added as part of the Release 97 feature set. This feature came about

because of a desire by Network Operators to offer differentiated services, without the need for the

Mobile Manufacturers having to build different variant for different customers. The unique service

offered by the Operator is placed as an application on the SIM and that could work on any mobile

that supports the Toolkit feature.

There is a distinct set of commands between the mobile and the SIM specifically for the Toolkit

that allows the SIM Toolkit and the mobile to communicate independently of the GSM

communication between the SIM and the mobile. Henceforth, the SIM Application Toolkit and

GSM functionality on the SIM are separated logically. The Toolkit can interact directly with the

mobile itself and adding itself to the mobile menu.

Currently, Toolkit application on the SIM and its “other half” communicate by using the Short

Message Service(SMS). “Proactive SIM” is a mechanism whereby the SIM can initiate actions to

be taken by the mobile. These actions include:

· Display text from the SIM on the Mobile display

· Send short message

· Set up a voice call to a number held by the SIM

· Set up a data call to a number and bearer capabilities held by the SIM

· Send a Supplementary Service (SS) control or Unstructured Supplementary Services Data

(USSD) string

· Play a tone in the mobile’s ear piece or ringer

· Initiate a dialogue with the user

· Provide local information from the mobile to the SIM.

· Data download to the SIM from network

· Call control by the SIM.

SIM Applications Toolkit (SAT) allows the flexibility to update the SIM, to change the services and

download new services over the air. In the SAT specification, the short message service is a key

mechanism for personalizing the SIM in each user’s GSM phone. It is designed as a client-server

application. A50 series supports SAT Class 3 specification.

When active, the name of the service may appear in the menu, and there will be sub-menu if

more than one application is active. Figure 1.4 is the SAT icon.

FIGURE 1.4 SAT ICON

Extended GSM 900, E-GSM

This is a new standard that allows Network Operators to increase their capacity through an

extended frequency. The frequency range of E-GSM is as follows:

· Mobile Transmit: 880,2 - 914,8 MHz

· Mobile Receive: 925,2 - 959,8 MHz

A50/1168 series is a GSM Phase 2 / Phase 2+ Dualband E-GSM / GSM 1800 mobile phone.

Wireless Application Protocol, WAP.

Wireless Application Protocol takes a client-server approach that uses the in-built micro-browser

to make a request, in wireless markup language (WML), for information or service. The request is

passed to a WAP Gateway, which then retrieves the information from a Internet server, in HTML

format, and translate it into WML. The requested information is then sent to from the WAP

Gateway to WAP client (mobile) using the available and most appropriate mobile network bearer

services.

Wireless Protocol Stack.

Wireless Application Environment (WAE)

Wireless Session Protocol (WSP)

Wireless Transaction Protocol (WTP)

Wireless Transport Layer Security (WTLS)

Wireless Datagram Protocol (WDP)

Bearers e.g. Data, SMS, USSD

TABLE 1..1 WAP PROTOCOL STACK

1. Wireless Application Environment

Defines the user interface on the phone. WAE contains the WML,WML script and the

wireless telephony application (WTA).

2. Wireless Session Protocol

Link the WAE to two session services – one connection oriented operating above the WTP

and a connectionless service operating above WDP.

3. Wireless Transaction Protocol

Runs on top of the datagram service and part of the standard suite of TCP/IP protocols, to

provide a simplified protocol suitable for low bandwidth mobile station.

4. Wireless Transport Layer Security

WTLS incorporates security features that are based upon the established Transport layer

Security (TLS) protocol standard, that include data integrity checks, privacy on the WAP

Gateway to client leg and authentication.

5. Wireless Datagram Protocol

Allows WAP to be bearer independent by adapting the transport layer of the under-laying

bearer. WDP presents a consistent data format to the higher layer on the WAP stack.

WAP Internet access via the A50 is possible with the inclusion of Wireless Application Protocol

(WAP) browser 1.2.1.

Note: The Asian variant phone (1168) does not support WAP.

Level 2 Service Guide

Introduction

The chapter is intended to help you carry out repair up to Level 2 on the A50 mobile phone.

General Information

A50/1168 is a dual band (GSM 900 and GSM 1800) Siemens GSM Smart handset.

Due to different requirements of the markets, the A50 has different variants, which broadly

classified under International version and Asian version. Marketing name for international version

is A50, whereas Asian version is 1168.

The A50 and 1168 share the same phone accessories.

Difference between A50 and 1168

The differences between the A50 and 1168 are the phone hardware code and the phone

software.

1168 is a Asian variant of A50 phone for the China, Taiwan, Hong Kong, Singapore and Malaysia

markets featuring support for English, Simplified Chinese and Traditional Chinese language.

The repair for international version A50 and the Asian variants 1168 are identical unless

otherwise noted, therefore the description herein is confined to A50 only.

All repairs have to be carried out in an environment set up

according to ESD regulations defined in international standards.

apte

A50/1168 Technical Information

System GSM Phase 2, Dual Band

EGSM 900, Class 4(2 Watt)

GSM 1800, Class 1(1 Watt)

Operating Voltage 3.6V

Size (LxWxH) 109 x 46 x 23 mm (L x W x H)

Volume 85 cm3including battery (approx)

Weight 97g including battery (approx)

Battery 650mAH Li-ion Battery (A50 Standard)

Standby time1up to 250 hours (standard battery)

Talk time1up to 300 minutes (standard battery)

Charging Time < 2 hours for 100%

SIM support Plug in card 1.8 V or 3V, SIM Application Tool Kit Class 3

Antenna Integrated

Speech codec Triple rate voice coder Enhance Full Rate/Full Rate/Half Rate

Display 5 lines, 64x101 pixels

Keypad 12 numeric keys (10 numeric, #, *)

2 function keys (Send, End-ON/OFF)

2 multifunctional softkey and 1 phone book key

Key Sound Click/DTMF/None

Key Lock Activation and Deactivation by #-key or

Automatic

Dialing Last 10 outgoing calls (Redial)

Last 10 incoming with date/time stamp

Last 10 missed calls with date/time stamp

Ringer On/Beep/Off

16+4 individual melodies and 5 ringer volume settings

Speaker Volume Adjustable in 4 levels during call via softkey

Silent Alert Built-in vibrator

Phone Book Storage depends on the SIM card capacity (up to 255)

1Actual time dependent on the network.

Internal phonebook of 50 entries.

SMS Support MT, MO, CB

Predictive Text Input, Tegic T9.

Supplementary Call Forwarding, Call Hold, Call Wait,

Services Multiparty Conference, CLIP, CLIR, AoCC

AoCI, FDN, LND USSD and SAT

Ciphering A5/1 and A5/2 supported

PIN control PIN 1 & 2 Code Control

Phone code 4 to 8 digit code

Network function Automatic and manual network selection

Chipset Infineon EGOLD+

WAP Browser Version 1.2

Other Features

· Calling Faces & Calling Symbols

· Predefined EMS sounds & pictures

· Concatenated SMS

· Various animations (menu, welcome)

· Silent Alert

· Various user profiles

· Text modules

· Intelligent Typing (T9) + Libraries

· Chinese menu and input (xx88)

· Alarm / Date

· Date & Time Stamp

· 50 additional phone book entries in the phone

· Mobile Internet Access

· Grouping SMS

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