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Sony Ericsson Mobile Communications International publishes this document without making any
warranty as to the content contained herein. Further Sony Ericsson Mobile Communications International reserves the right to make modifications, additions and deletions to this document due to
typographical errors, inaccurate information, or improvements to programs and/or equipment at any time and
without notice. Such changes will, nevertheless be incorporated into new editions of this document.
6.1 Power On Sequence .........................................................................28
6.2 Power Off Sequence .........................................................................29
6.3 USB communications information .....................................................30
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Part 1 : Overview
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1 Introduction
The EDGE Daughter Card is a total solution designed as an add-in option for integrators
of the host product. The Daughter Card comprises of several component parts:
• EDGE wireless modem, which is the wireless enabling circuitry integrated on to the
Daughter Card PCB together with its mechanical RF shielding
• RF connector, which provides physical connectivity between the Daughter Card and
the antenna which is integrated in to the notebook mechanical housing
• Voltage regulation circuitry, which converts raw unregulated power from the host
battery to the core regulated voltage to the EDGE wireless components
• System connector, which provided the data, control, power and status interface
between the host and the wireless modem
• SIM connector, a combined connector and retention device for the users Subscriber
Identity Module (SIM) card
EDGE WIRELESS
EDGE WIRELESS
DAUGHTER
DAUGHTER
CARD
CARD
CIRCUITRY
CIRCUITRY
VOLTAGE
VOLTAGE
REGULATION
REGULATION
SYSTEM
SYSTEM
CONNECTOR
CONNECTOR
RF ANTENNA
RF ANTENNA
CONNECTOR
CONNECTOR
SIM
SIM
CONNECTOR
CONNECTOR
Figure 1.1-1 EDGE Daughter Card Component Parts
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1.1 Target Users
1.2 Prerequisites
Integration of the EE5x Daughter Card may be performed at facilities under customer
management.
1.3 Notation
EDGE (Enhanced Data rate for GSM Evolution) is the wireless-enabling technology.
The EDGE Daughter Card describes the deliverable product. The EDGE Daughter Card
is a PCB assembly with the components described on the previous page integrated on to
the board. The complete assembly is reffered in this document as the DC (DC=Daughter Card ).
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2 EDGE Wireless Modem
2.1 EDGE Wireless Modem in a Communication System
Figure 2.1-1 illustrates the main blocks of a wireless communication system using the
EDGE Daughter Card embedded in a host device. It also shows the communication
principles of the system. The definitions in the figure, as used elsewhere in this manual,
are in accordance with the recommendations of GSM 07.07.
• The MS (mobile station) represents the EDGE Daughter Card modem plus SIM card.
• The modem excluding SIM card, is known as the ME (mobile equipment).
• The TE (terminal equipment) is a micro-controller (i.e., the host) and is a part of the
application.
Figure 2.1-1 Main Blocks in a Wireless System
In accordance with the recommendations of ITU-T (International Telecommunication
Union - Telecommunications Standardisation Sector) V.24, the TE communicates with the
MS over a serial interface. This is the Universal Serial Bus (USB).
The functions of the EDGE modem follow the recommendations provided by ETSI
(European Telecommunications Standards Institute) and ITU-T.
ETSI specifies a set of AT commands for controlling the GSM/E-GSM element of the
modem; these commands are supplemented by Sony Ericsson specific commands.
Figure 2.1-2 Interface between Daughter Card and Application illustrates the interface
between the Daughter Card and the host application. Each interface signal is described in
Section 3.
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HOST EQUIPMENT
HOST
HOST EQUIPMENT
HOST
Power
Power
Power
Power
Power
Power
Power
Power
TE
TE
TE
TE
(DTE)
(DTE)
(DTE)
(DTE)
Communication
Communication
Communication
Communication
Control
Control
Control
Control
Status
Status
Status
Status
SYSTEM CONNECTOR
SYSTEM CONNECTOR
SYSTEM CONNECTOR
SYSTEM CONNECTOR
Antenna
Antenna
Antenna
Antenna
MODEM)
MODEM)
MODEM)
MODEM)
Voltage
Voltage
Voltage
Voltage
Voltage
Voltage
Voltage
Voltage
Reg
Reg
Reg
Reg
MS
MS
MS
MS
(EDGE
(EDGE
(EDGE
(EDGE
Reg
Reg
Reg
Reg
SIM
SIM
SIM
SIM
Figure 2.1-2 Interface between Daughter Card and Application
Note that ITU-T standards define TE and TA as DTE (Data Terminal Equipment) and DCE
(Data Circuit Terminating Equipment) respectively.
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2.2 Functional Block Diagram
A function representation of the EDGE duaghter card is included in the figure below.
The EDGE modem performs a set of telecom services (TS) according to GSM standard
phase 2+, ETSI and ITU-T. The functions of the modem are implemented by issuing AT
commands over a serial interface.
2.3.1 Mobile Station Characteristics
The EDGE modem can be configured for single, dual, triple and quad band GSM
functionality. The quad band characteristics of the EDGE modem are shown in the
following table.
EDGE MODEM GSM850 E-GSM900 GSM1800 GSM1900
Frequency range (MHz)
Channel spacing 200kHz
Number of channels 123 x 8 (TDMA)173 x 8 (TDMA)373 x 8 (TDMA)298 x 8 (TDMA)