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EDGE, as being once a GSM technology, works on the existing GSM or the TDMA carriers, and enables them to many of the 3G services. Although EDGE will have a little technical impact, since its fully based on GSM or the TDMA carriers, but it might just get an EDGE over the up coming technologies, and of course, the GPRS. With EDGE, the operators and service providers can offer more wireless data application, including wireless multimedia, e-mail (Web Based), Web Infotainment, and above all, the technology of Video Conferencing. Now all these technologies that were named earlier, were the clauses of the IMT-UMTS 3G Package. But, with EDGE, we can get all these 3G services on our existing GSM phones, which might just prove to be a boon to the user. The current scenario clearly states that EDGE will definitely score higher than GPRS.
The former allows its users to increase the data speed and throughput capacity, to around 3-4 times higher than GPRS. Secondly, it allows the existing GSM or the TDMA carriers to give the sophisticated 3G services. And with 1600 Million subscribers of GSM in over 170 countries, offer the full Global Roaming, anywhere between India to Japan and to San Francisco. Based on an 8 PSK modulation, it allows higher bit rate across the air interface. There is one symbol for every 3 bits.
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Thus, EDGE Rate is equal to 3x GPRS Rate. 5. Future Evolution Towards WCDMA The next evolutionary step for the GSM / EDGE cellular system includes enhancements of service provisioning for the packet-switched domain with the service provisioning in UMTS / UTRAN (UMTS terrestrial radio access network). GERAN will provide improved support for all quality of service (QoS) classes defined for UMTS: interactive, background, streaming and conversational.
By doing so, a range of applications, including IP multimedia applications, will be exceptionally supported. This part of the GSM / EDGE evolution focuses on support for the conversational and streaming service classes, because adequate support for interactive and background services already exists. Additionally, parallel simultaneous bearers will support multimedia applications with different QoS characteristics towards the same MS, such as multiple media streams handled through IMS domain. A driver for such evolution on the packet-switched side is the paradigm shift within the communications world from circuit to packet-switched communications. Both the core network defined for GPRS and the current GSM / EDGE radio access network require configurations to support enhanced packet services.
The GPRS / EGPRS networks can quickly and cost effectively evolve with market needs, and align with services provided by WCDMA networks. The current evolution of GSM / EDGE, which covers all of the above aspects, is being standardized in 3GPP TSG GERAN. [4] 6. EDGE in Pakistan Pakistan has the sixth largest population in the world – approximately 150 million.
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There are currently four mobile operators in the country. Mobile penetration at the end of 2003 was just 2.3% with a subscriber base of 3.4 million, while fixed line penetration was approximately 2.4%. Many geographic areas in Pakistan are without telephone coverage. To accompany recent positive economic development in Pakistan and the inherently low mobile penetration, high growth within the mobile segment is expected. At the moment the people in Pakistan are more concerned with the text-enabled facility like SMS. Although the introduction of GPRS has a concept and boost in Cellular network but still, people are not that much concerned using Internet by their terminal. Few think that it still more expensive and few believe that GPRS did not develop the interest for using Internet if we compared it by computer.
In April 2004 Norwegian mobile telecom operator, Telenor, bid for and absolutely won a license to operate a cellular network in Pakistan.
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