Specifications

Chapter 11 – SocketModem HSDPA

Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342I) 149

Operating Modes

The table below briefly summarizes the various operating modes.

Mode Function

Normal

operation

GSM / GPRS / UMTS /

HSDPA SLEEP (for USB

only)

Power saving mode set automatically when no call is in progress and the

USB connection is suspended by host or not present.

GSM IDLE Software is active. Once registered to the GSM network, paging with BTS is

carried out in order to achieve synchrony with the GSM network. The

repetition rate depends on the parameter BSPA_Multiframe. The

SocketModem is ready to send and receive.

GSM TALK Connection between two subscribers is in progress. Power consumption

depends on the GSM network coverage and several connection settings

(e.g. DTX off/on, FR/EFR/HR, hopping sequences and antenna connection).

The following applies when power is to be measured in TALK_GSM mode:

DTX off, FR and no frequency hopping, otherwise same as for IDLE

measurements.

GPRS IDLE The SocketModem is attached and ready for GPRS data transfer, but no

data is currently sent or received.

GPRS DATA GPRS data transfer in progress. Power consumption depends on network

settings (e.g. power control level), uplink / downlink data rates and GPRS

configuration (e.g., used multislot settings).

EGPRS DATA EGPRS data transfer in progress. Power consumption depends on network

settings (e.g. power control level), uplink / downlink data rates and EGPRS

configuration (e.g., used multislot settings).

UMTS / HSDPA IDLE The SocketModem is attached and ready fo

UMTS / HSDPA data transfer,

but no data is currently sent or received.

UMTS DATA UMTS data transfer in progress. Power consumption depends on network

settings (e.g., TPC Pattern) and data transfer rate.

HSDPA DATA HSDPA data transfer in progress. Power consumption depends on network

settings (e.g., TPC Pattern) and data transfer rate.