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What is the data speed the EDGE offers..
and what exactly is the enhancement it offers?
EDGE provides up to three times the data capacity of GPRS.
EDGE can carry data speeds up to 236.8 kbit/s for 4 time slots (theoretical maximum is 473.6 kbit/s for 8 time slots)
The 'enhanncement' is a new modulation scheme called 8-PSK and produces a 3bit word for every change in carrier phase.
This effectively triples the gross data rate offered by GSM.
This is what I was looking for exaclty.
Lets take a Cell where 3 TRX are there.
How many TCHs we have to allocate for EDGE or is it shared ?
If it shared can we have a FIXED Rate as minimum (Like allocating one/2 TS always).
When requirement touches more than this can we share with Normal TCHs.
And Howmany TS needed for Signaling ?
thanks for the post.:-)
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Enhanced Data rates for GSM Evolution (EDGE) (also known as Enhanced GPRS (EGPRS), or IMT Single Carrier (IMT-SC), or Enhanced Data rates for Global Evolution) is a digital mobile phone technology that allows improved data transmission rates as a backward-compatible extension of GSM. EDGE is considered a pre-3G radio technology and is part of ITU's 3G definition.[ EDGE was deployed on GSM networks beginning in 2003 – initially by Cingular (now AT&T) in the United States.
EDGE is standardized also by 3GPP as part of the GSM family.
Through the introduction of sophisticated methods of coding and transmitting data, EDGE delivers higher bit-rates per radio channel, resulting in a threefold increase in capacity and performance compared with an ordinary GSM/GPRS connection.
EDGE can be used for any packet switched application, such as an Internet connection.
Evolved EDGE continues in Release 7 of the 3GPP standard providing reduced latency and more than doubled performance e.g. to complement High-Speed Packet Access (HSPA). Peak bit-rates of up to 1Mbit/s and typical bit-rates of 400kbit/s can be expected.
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