4G Mobile Broadband

4G will be powered by a complete revolution in radio technology aimed at packing information more efficiently on the scarce and expensive air waves. High spectral efficiency is made possible with a 4G air interface technology called Orthogonal Frequency Division Multiplexing (OFDM). Another innovative technique that provides a killer combination for 4G wireless access is the Multiple Input Multiple Output (MIMO) antenna technology. With MIMO, the BTS has the intelligence to further boost capacity and coverage using various algorithms that take advantage of the mobile environment to provide the multi-megabit-per-second user experience. On the core network side, 4G combines many of the routing and mobility management functions to deliver a flat all-IP network architecture that enhances data performance and reduces operational costs.

New bandwidth-hungry applications and real-time sensitive services will drive greater consumer adoption in the market, and the new generation of consumer devices and advances in current devices are driving hyperconnectivity -- a state of increasing penetration where each user has multiple connected devices. 4G mobile broadband will provide an order of magnitude improvement in performance, total cost of ownership and number of devices supported by the network. These improvements are significant and will make 4G mobile broadband a truly disruptive and business-changing technology.

Mobile broadband is all about the user experience. 4G mobile broadband will bring more affordable services to wireless consumers, and these services will be made possible with the deployment of more efficient radio technologies. Innovation in next-generation technologies is part of Nortel's DNA, which means that no one understands the wireless technologies required to deliver 4G Personal Broadband better than Nortel. We're pioneering the application of OFDM and MIMO, which are the underlying technologies for WiMAX, LTE and UMB.

Nortel is also playing a key role in building a converged architecture and enabling real-time, multimedia applications. We've developed the most standards-compliant and open IMS solution -- one that can adapt to any type of operator.

Nortel leverages a common carrier-grade core network solution across all leading broadband access technologies to simplify inter-working and support services convergence addressing all access types, including GSM, UMTS, CDMA, wireline and cable.

For early success in 4G, Nortel understands that a holistic ecosystem needs to be in place, and we're harnessing the power of world-class networking with innovation in communication devices and working closely with partners and customers. We continue to create strong partnerships with leading chipset, device and application vendors to deliver an end-to-end solution.

WiMAX is a unique technology that delivers high-speed, broadband fixed and mobile services wirelessly to large areas with much less infrastructure than is needed today. It supports and enables applications that allow your network to move from one access network to another seamlessly.

IP Multimedia Subsystem (IMS) turns the Intelligent Network into an Intuitive Network that is device, application and access aware. With IMS, Nortel delivers empowered multimedia services that provide new levels of personalization, security and mobility.

Long Term Evolution (LTE), combining OFDM and MIMO, will provide on average up to 5 times greater spectral efficiency than the most advanced 3G networks, reducing the cost per bit and allowing better economics for operators and end users.