The news comes less than a week after rival consortium WWiSE, whose members include TI, Broadcom, Conexant, and STMicroelectronics, submitted their own IEEE 802.11n proposal. (See related story.)

TGn Sync's proposal enables a new class of low-power wireless technologies that intelligently use wireless spectrum to deliver data rates up to 243 Mbps reliably in standard two antenna designs, and are extensible to over 600 Mbps. The proposal expands the appeal of 802.11n beyond traditional Wi-Fi devices and high-end products. Important innovations include methods to reduce power consumption for small mobile phones and increase the user capacity of public networks. The proposal also uses adaptive radio techniques to ensure that wireless products can adjust to the planned expansion of unlicensed and licensed spectrum in China, Japan, South Korea, North America, the European Union (EU), and other regions.

Key features of the TGn Sync proposal include:

• Multiple Input, Multiple Output (MIMO) Spatial Division Multiplexing to support data rates of up to 243 Mbps in standard two antenna designs, with extensions to support over 600 Mbps. This complements the evolution of modern technologies such as USB 2.0, IEEE 1394b, and PCI Express to provide a dramatic performance upgrade for users of current wireless designs.
• Adaptive Radio Technology to intelligently use spectrum and adapt to its expansion by worldwide regulatory bodies for unlicensed and licensed applications. This allows products to remain interoperable while adapting to different numbers of spatial streams (2 to 4) as well as different amounts of spectrum (10, 20, 40 MHz). Adaptive radio is essential to the mobile handsets, PC laptops, and other products that only have two antennas, because it dramatically increases their performance while functioning as an interoperable good neighbor.
• Both Extended Modulation Coding Scheme (MCS) and Basic Beamforming to increase the speed and reliability of data links under conditions that disrupt many MIMO networks. This enables the advanced 802.11n capabilities to be sustained over range and also maintain full interoperability with existing 802.11a/b/g devices. This addresses enterprise and public access customers' concerns about coverage area and the ability to support a mix of old and new devices.
• Timed Receive Mode Switching (TRMS) and Multiple Receiver Address (MRA) Power Management enables products to operate in extremely low power modes and engage advanced capabilities on demand. This is important for voice handsets, notebook computers and any power-sensitive applications, because it lets them take full advantage of high data rates to reduce the amount of time their radios must operate. Fast radios extend battery life.