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`GPRS & EDGE
`General Packet Radio Service / Enhanced Data rates for Global Evolution
`
` GSM™ is a circuit-switched network; ideal for the delivery of voice but with limitations for sending data. The standard for GSM
` was designed to evolve. In 2000 the introduction of General Packet Radio Service (GPRS) added packet-switched functionality
` and ‘kick started’ the delivery of the Internet on mobile handsets.
`GPRS adds packet-switched functionality to GSM networks
`
`Based on specifications in Release 97, GPRS typically reached speeds of 40Kbps in the downlink and 14Kbps in the uplink by
` aggregating GSM time slots into one bearer. Enhancements in Releases R’98 and R’99 meant that GPRS could theoretically
` reach downlink speeds of up to 171Kbps.
`
`The next advance in GSM radio access technology was EDGE (Enhanced Data rates for Global Evolution) or Enhanced GRPS.
`
`With a new modulation technique yielding a three-fold increase in bit rate (8PSK replacing GMSK) and new channel coding for
` spectral efficiency, EDGE was successfully introduced without disrupting the frequency re-use plans of existing GSM
` deployments.
`
`EDGE… almost 3G
`
`The increase in data speeds to 384Kbps placed EDGE as an early pre-taste of 3G, although it was labeled 2.75G by industry
` watchers.
`
`Ongoing standards work in 3GPP has delivered EDGE Evolution, which is designed to complement high-speed packet access
` (HSPA) coverage.
`
`EDGE Evolution has:
`
`Improved spectral efficiency with reduced latencies down to 100ms
`Increased throughput speeds to 1.3Mbps in the downlink and 653Kbps in the uplink
`
`GPRS (Release 97) and EDGE (Release 98) are largely specified in the GSM EDGE Radio Access Network (GERAN)group of
` 3GPP;
`
`Reading should start with the 44 series and 45 series of the 3GPP specifications;
`
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`1
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`
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`GPRS & EDGE
`
`FULL MEETING CALENDAR
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`Release 14
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`LTE-Advanced
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`Carrier Aggregation Explained
`HetNet/Small Cells
`NAS
` The Evolved Packet Core
`HSPA
`UMTS
`W-CDMA
`GPRS & EDGE
`
`http://www.3gpp.org/technologies/keywords-acronyms/102-gprs-edge[1/7/2016 3:14:01 PM]
`
`2
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