Press Release

Qualcomm Demonstrates Significant EV-DO Milestones with High-Capacity VoIP Over Rev. A and High-Speed Data Over Rev. B

Company Achieves 114 Simultaneous VoIP Connections in a Single EV-DO Rev. A Sector and 9.3 Mbps Peak Data Rate in a Live, Over-the-air Demonstration of Rev. B

Mar 23, 2007SAN DIEGO

Qualcomm products mentioned within this press release are offered by Qualcomm Technologies, Inc. and/or its subsidiaries.

Qualcomm Incorporated (Nasdaq: QCOM), a leading developer and innovator of Code Division Multiple Access (CDMA) and other advanced wireless technologies, today announced a major milestone on the evolutionary path of EV-DO - a demonstration of 114 simultaneous voice over Internet protocol (VoIP) calls over a single 1.25 MHz channel in an isolated sector. In commercial deployment scenarios, EV-DO Rev. A's capacity is expected to be up to 68 users in a 1.25 MHz single embedded sector, or about 475 simultaneous users in 10 MHz (a single embedded sector with seven 1.25 MHz carriers). The demonstration validates EV-DO's stability and maturity in supporting high-capacity, high-quality VoIP services - an important element of the rich voice and media applications that drive consumer demand. Modems with commercial application-specific integrated circuits in both the handsets and prototype network were used. The field test to demonstrate 114 simultaneous VoIP calls was conducted using an isolated EV-DO Rev. A sector employing a single 1.25 MHz channel in order to stress Rev. A algorithms, protocols and design parameters.

This VoIP field test employed a number of advanced Rev. A techniques to achieve voice quality and capacity comparable to traditional circuit-switched voice services, including:

  • Mobile receive diversity, equalization, interference cancellation and IP overhead reduction algorithms, which collectively optimize network capacity
  • End-to-end quality of service and enhanced speech-processing algorithms, which improve voice quality and ensure a consistent user experience

“EV-DO Rev. A's high-quality VoIP capabilities lead the way to combining VoIP with a wide variety of mobile data services,” said Dr. Sanjay K. Jha, chief operating officer of Qualcomm. “Wireless service trends are leading toward delivering rich, simultaneous multimedia services over a converged data network, and VoIP plays a key role in this migration.”

EV-DO Rev. A allows more integrated IP-based voice, video and data services, such as rich voice, push-to-connect, low-delay gaming and packet-switched video telephony. These services, and the converged devices that support them, allow operators to provide customers with new differentiated services and a high-quality user experience.

EV-DO Rev. B - the next step in EV-DO's evolutionary path - allows operators to combine Rev. A channels for increased performance and capacity. Qualcomm achieved a significant milestone in this evolution with a live, over-the-air demonstration of Rev. B that achieved a 9.3 Mbps downlink data rate in 5 MHz. This first implementation of Rev. B is available as a software upgrade to existing Rev. A channel cards. The Rev. B standard supports peak three-channel data rates of up to 14.7 Mbps. Rev. B offers broadband performance in a fully mobile environment with a consistent user experience across the coverage area. Furthermore, Rev. B networks will be 100 percent backward compatible and fully support all existing Rev. A devices and services. Additionally, the handover between Rev. B and Rev. A/Rel. 0 is seamless. This seamless handover allows for a hotspot deployment of a Rev. B system within the already deployed Rev. A system.

“Through progressive evolution, EV-DO is enabling operators to offer new service bundles supporting a mix of low-latency and high data-rate applications, from VoIP to mobile broadband, all on a single converged network.” Jha continued. “These demonstrations underscore the strength of the evolution path and its success in providing converged broadband services.”

Qualcomm Incorporated ( is a leader in developing and delivering innovative digital wireless communications products and services based on CDMA and other advanced technologies. Headquartered in San Diego, Calif., Qualcomm is included in the S&P 500 Index and is a 2006 FORTUNE 500® company traded on The Nasdaq Stock Market® under the ticker symbol QCOM.

Except for the historical information contained herein, this news release contains forward-looking statements that are subject to risks and uncertainties, including the Company's ability to successfully design and have manufactured significant quantities of CDMA components on a timely and profitable basis, the extent and speed to which EV-DO Rev. A and Rev. B are deployed, change in economic conditions of the various markets the Company serves, as well as the other risks detailed from time to time in the Company's SEC reports, including the report on Form 10-K for the year ended September 24, 2006, and most recent Form 10-Q.


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