Gprs (General Packet Radio Service) - Siemens A65 Puma Service Manual

Hide thumbs Also See for A65 Puma:

Table of Contents

SIEMENS

A65 Level 2 Service Manual

1.5 GPRS (GENERAL PACKET RADIO SERVICE)

GPRS is a new non-voice value added services that allows information to be sent

and

received across a GSM mobile telephone network. It supplements today's Circuit Switched

Data (CSD) and Short Message Services (SMS). GPRS involves overlaying a packet based

air interface on the existing circuit switched GSM network. This gives the option to use a

packet-based data service. The information is split into separated but related "packets" before

being transmitted and reassembled at the receiving end. Theoretically, maximum speeds of

up to 171.2 kilobits per second (kbps) are achievable with GPRS using all eight timeslots at

the same time. This is about 3

times as fast as the data transmission speed possible over

today's fixed telecommunications networks and 10 times as fast as current Circuit Switched

Data services on GSM networks

Example: Cell with 1 Frequency channel:

1 physical channel for signaling, 4 physical channels for Circuit switched and 3 physical

channels

for Packet switched.

SSMC MD CCQ

7 of 44

Internal Service Use Only

Siemenes Shanghai Technical Support Center

Table of Contents