Qualcomm Incorporated, developer and innovator of Code Division Multiple Access (CDMA) and other advanced wireless technologies, announced 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 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.
Dr. Sanjay K. Jha, chief operating officer of Qualcomm, said, "EV-DO Rev. A's high-quality VoIP capabilities lead the way to combining VoIP with a wide variety of mobile data services. 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."
It is said that 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 quality user experience.
"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
