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| 3GPP and 3GPP2 are the new worldwide standards for the creation, delivery and playback of multimedia over 3rd generation, high-speed wireless networks.
Defined by the 3rd Generation Partnership Project and 3rd Generation Partnership Project 2 respectively, these standards seek to provide uniform delivery of rich multimedia over newly evolved, broadband
mobile networks (3rd generation networks) to the latest multimedia-enabled wireless devices. Tailored to the unique requirements of mobile devices,
3GPP and 3GPP2 take advantage of MPEG-4, the standard for delivery of video and audio over the Internet. QuickTime at the Core When defining the MPEG-4 standard, the ISO (International Organization for Standardization) chose to base MPEG-4 on the QuickTime architecture. And because 3GPP and 3GPP2 are based on the MPEG-4 standard, these formats also benefit from the extensibility, scalability and stability of QuickTime. This means that 3GPP (.3gp) and 3GPP2 (.3g2) files inherit from QuickTime the ability to mix different types of media, like video, audio and text, in a single file thanks to its track-based file format. 3GPP and 3GPP2 files also inherit QuickTime’s scalability, allowing media at a broad range of bandwidths to be delivered in the same type of file. Additionally, these formats benefit from the time-tested stability of QuickTime. For more than a decade, QuickTime’s flexible format has been easily expanded to include new technologies. QuickTime 6.5 provides the worldwide QuickTime community with immediate access to 3GPP and 3GPP2 technology: 
Developers of hundreds of existing multimedia authoring applications built on the QuickTime architecture can inherit 3GPP and 3GPP2 functionality for their products. 
Content creators already using these QuickTime-based products, such as Final Cut Pro and QuickTime Pro, can easily deliver media to a whole new audience via new, high-speed wireless networks. 
3G handset users can share 3GPP and 3GPP2 content not only from phone to phone, but thanks to QuickTime, from phone to desktop and back again.
With the widespread distribution of QuickTime, 3GPP and 3GPP2 technology can reach millions of new QuickTime users each week,
continuously expanding the potential audience for both professionally produced and consumer-created mobile content. 3GPP, 3GPP2, and QuickTime 6.5 
In order to ensure interoperability between products from all players in the mobile telecommunications industry, the 3GPP and 3GPP2 specifications call
out specific types of media that can exist in .3gp and .3g2 files. QuickTime 6.5 includes support for the following key components of the 3GPP and 3GPP2 specifications.
For video, QuickTime 6.5 delivers both MPEG-4 and H.263. MPEG-4 video is a modern, highly efficient video codec using the latest advances in compression technology that result in high-quality video across the bandwidth spectrum. H.263 is a widely-distributed, time-tested codec long used in Internet streaming and video conferencing. Both codecs are standards-based and provide excellent results at low data rates. 3G audio support in QuickTime 6.5 includes both AAC (Advanced Audio Coding) and AMR (Adaptive Multi-Rate) audio for 3GPP with the addition of QCELP (Qualcomm Code Excited Linear Predictive) audio for 3GPP2. AAC compresses audio much more efficiently than older formats such as MP3, yet delivers quality rivaling that of uncompressed CD audio. AMR provides narrowband audio encoding designed specifically for speech. The result is clear, crisp sound, similar to the quality found on a high-end standard telephone, at incredibly low data rates. Much like AMR, QCELP is a low-bandwidth audio technology designed for pristine speech on CDMA2000 handsets. As text is a key element in wireless communications, the 3GPP and 3GPP2 specifications include support for 3G Text (TX3G). This text is time-based, meaning it can be appropriately synchronized with audio and video tracks for titling, captioning, and even karaoke. QuickTime 6.5 includes support for importing and exporting 3G Text as well as XML. In addition, nearly any ASCII text file can be imported into QuickTime Pro and exported as 3G Text in a .3gp or .3g2 file. QuickTime supports the creation of Movie Fragments, an Apple-designed, 3GPP2-specified technology that provides mobile operators and content providers with many of the advantages of real-time streaming while leveraging their existing web infrastructure. When Movie Fragments are used, the multimedia content is delivered incrementally over standard TCP wireless networks, providing a more immediate viewing experience for the end user. |
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What is 3G? 3G stands for third generation, a generic wireless industry term for high-speed mobile data delivery over cellular networks. 3G networks allow users to send and receive bandwidth-intensive information such as video, video conferencing, high quality audio and web data on-demand, virtually anytime and anyplace. 3G Evolution  The evolution of high-speed wireless digital networks is based on two predominant technologies — GSM and CDMA2000. Both types of 3G networks are currently being deployed worldwide to offer consumers a variety of on-the-go multimedia services. GSM and CDMA Coverage  GSM and CDMA wireless networks cover nearly every country around the globe. Mobile operators using these technologies are currently upgrading to higher data speeds to deliver rich multimedia content services to their subscribers.  NTT DoCoMo at the forefront With your 3GPP-enabled FOMA Mobile MP4 “i-motion” cell phone, you can capture video and audio and email it to a friend’s Mobile MP4 cell phone or QuickTime-enabled desktop computer. You can also subscribe to receive news, sports and entertainment programming right on your Mobile MP4 cell phone. This exciting advancement in the exchange of mobile multimedia is brought to you by NTT DoCoMo’s Mobile MP4 “i-motion” service, now available in Japan, and the authoring and playback capabilities of QuickTime 6.5.  KDDI delivers high-speed mobility KDDI’s new high-speed 3G network delivers broadband speeds of up to 2.4 Mbps to your mobile phone. And now with QuickTime 6.5, you can create 3GPP2 content for this speedy network or play back handset-generated 3GPP2 files on your computer. In addition, KDDI’s professional 3G services like EZMovie allow you to download professional video content for information on-the-go and much more, created with QuickTime 6.5 Pro. Interoperability QuickTime is compatible with existing standards-based, telecommunications-grade, content delivery solutions and the world’s most popular multimedia phones. 3GPP and 3GPP2 Mobile Infrastructure Solutions — Many of the world’s largest telecommunications infrastructure companies provide 3GPP and 3GPP2 mobile content delivery products and services to operators that are compatible with QuickTime. Examples include:
3GPP and 3GPP2 Mobile Phones — Many of today’s new mobile phones offer 3GPP and 3GPP2 content capture and playback capabilities that are compatible with QuickTime. Leading providers of these standards-based multimedia phones include:
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