Motorola Measures Peak OFDM Downlink Speeds of 300 Mbps

Motorola Labs has demonstrated that existing Orthogonal Frequency Division Multiplexing (OFDM) technology can support high-speed mobile networks with a peak downlink speed of up to 300 Mbps. The company said future all-IP mobile networks using OFDM technology have the capability to provide a broadband user experience that was previously thought to be unattainable.



Motorola Labs recently completed a series of mobile wide area broadband wireless field experiments using OFDM on a 20 MHz bandwidth channel with multiple antenna handheld devices. Applying data from the field experiments in laboratory tests, Motorola Labs validated that a 20 MHz mobile OFDM channel can support peak uncoded channel data rates of up to 300 Mbps.



The field tests of Motorola Labs' mobile OFDM system were conducted in the greater Chicago area in both urban and suburban environments. In the field tests Motorola Labs attained data throughputs exceeding 20 Mbps with a latency of just 25 milliseconds while simultaneously demonstrating real-time applications including videoconferencing, multi-Mbps streaming video, and voice over IP and traveling at typical highway speeds (in excess of 100 kilometers per hour or 62 mph).



Motorola said it would be sharing its OFDM research experience in cooperation with IEEE, ITU, ETSI, 3GPP and 3GPP2, and will be an active contributor in introducing OFDM to the standards bodies. Motorola also recently joined the WiMAX Forum as a principal member. http://www.motorola.com/