Technical data

2.3 Features
The Wireless CPU® performs a set of telecom services (TS) according to 3GPP release
99 and ITU-T. The functions of the Wireless CPU® are implemented by issuing AT
commands over a serial interface.
2.3.1 Types of Wireless CPU® Equipment
The GR64 is a fully Quad Band capable GSM/GPRS Wireless CPU® with the
characteristics shown in the table below.
Feature GSM850 E-GSM900 GSM1800 GSM1900
Tx 824-849 880-915 1710-1785 1850-1910
Frequency range (MHz)
Rx 869-894 925-960 1805-1880 1930-1990
Channel spacing 200kHz 200kHz 200kHz 200kHz
Number of channels 124 174 374 299
Number of TD slots 8 8 8 8
Duplex spacing 45MHz 45MHz 95MHz 80MHz
GSM power class 4 (2W) 4 (2W) 1 (1W) 1 (1W)
Modulation GMSK
Receive sensitivity <-102dBm at antenna connector
GPRS multi-slot class Class 10
2.3.2 Short Message Service
The Wireless CPU® supports the following SMS services:
• Sending; MO (mobile-originated) with both PDU (protocol data unit) and text
mode supported
• Receiving; MT (mobile-terminated) with both PDU and text mode supported
GR64 Integrators’ Manual
Page: 17/106
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written agreement.
Ce document est la propriété exclusive de WAVECOM. Il ne peut être communiqué ou divulgué à des tiers sans son autorisation préalable