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Qualcomm Inc. recently announced its DMMX (DO Multicarrier Multilink eXtensions) and HMMX (HSDPA Multicarrier Multilink eXtensions) platforms to support the long-term roadmaps of EV-DO and HSDPA. The company's DMMX and HMMX platforms are a set of technology and product innovations based on three fundamental aspects: 3GPP2 and 3GPP standards-based enhancements to CDMA2000 EV-DO and WCDMA HSDPA; Qualcomm-developed techniques for improving capacity and speed that do not require changes to current or proposed standards; and chips and software enabling the concurrent operation of multiple radio links such as CDMA, TDM and OFDM ¡X all working in a backward-compatible manner. The DMMX and HMMX platforms will not only significantly improve the performance of 3G CDMA technology, but will also enable operators to deploy networks and devices that combine different technologies that have been optimized for specific services. These platforms will result in lower costs and higher performance for operators as they launch new services for their customers.



"Qualcomm's DMMX and HMMX platforms encompass an array of advancements being made in CDMA and a broad range of other wireless technologies, enabling operators to expand their service offerings to support consumer desires while improving their business models," said Dr. Paul E. Jacobs, CEO, Qualcomm. "DMMX and HMMX concretely represent Qualcomm's roadmap for innovation, supporting our customers and partners through the year MMX ¡X or 2010 ¡X and beyond."



"The defining of these platforms reinforces our Convergence Platform strategy of enabling consumer electronics features on mobile handsets," said Dr. Sanjay K. Jha, president of Qualcomm CDMA Technologies. "Qualcomm is developing products that we expect to announce in 2006 that take full advantage of the unsurpassed data throughput, multicast and capacity benefits offered by DMMX and HMMX that will take us well into the next decade."



In DMMX and HMMX, "multicarrier multilink" represents the use of multiple wireless transmission protocols in multiple frequency bands ¡X simultaneously. An OFDM-based MediaFLO signal transmitted in 700 MHz spectrum for video services can be combined with the use of a CDMA-based EV-DO reverse link in cellular spectrum for interactive management by subscribers of their "wireless TV" services. Another example is the use of HSDPA in conjunction with assisted-GPS. As more features converge in handsets, more radio links will have to operate concurrently to support them.



In real-world terms, convergence and concurrence means that a user will do such things as:

watch TV or listen to music streamed in real-time to their phones while those phones continue to monitor the paging channel for voice calls and cellular data transmissions;

navigate around a city using a gpsOne-enabled application that continuously takes assisted-GPS fixes and constantly updates a map, downloaded over the cellular network, displaying their location and nearby points of interest;

have a VoIP-based phone conversation while scanning web pages, or participating in a VoIP-based conference call in which one person makes a point while, at the same time, multimedia content is sent to all participants in the call in support of that point;

or engaging in a multi-player game that incorporates moves by each participant concurrent with real-time video streams as part of game play, while using a wireless headset to talk with (or taunt) the other players.

"As the wireless, computing, consumer electronics and entertainment industries converge, the phone will have to do many different things concurrently," concluded Dr. Jacobs. "Convergence became possible during the transition from 2G to 3G, but it will truly be supported as we move towards the fourth generation of wireless. The idea of accessing a single homogeneous network has been supplanted by the notion, in a heterogeneous world, that the device will simultaneously link with multiple networks and protocols. In tomorrow's markets, we will stop talking about voice and data because, by the end of this decade, we will see that voice is data and data is much more than we imagined when wireless first transitioned from circuit-switching to IP- based packet implementations. The DMMX and HMMX platforms are Qualcomm's roadmap for the 3G CDMA community to achieve its goals for the wireless future."



Qualcomm Inc.