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Redpine Signals' Lite-Fi(TM) Ultra Low Power 802.11n Wi-Fi® Solution Achieves Lower Power Than Competing 802.11b/g Solutions for Mobile Handsets

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Redpine Signals, Inc.
2107 North First Street, Suite #680
San Jose, CA, 95131-2019

Press release date: February 12, 2008

Redpine's 802.11n solution achieves 300% higher data throughput vs. competitive solutions; RS9110-based reference design is industry's first & only fully certified 802.11n SDIO card solution

BARCELONA, Spain, Feb. 12 -- GSMA Mobile World Congress -- Redpine Signals, Inc., a leading developer of ultra low power multi-standard OFDM and MIMO silicon-based solutions, today announced the achievement of breakthrough power and performance of its recently released Lite-Fi(TM) RS9110 for 802.11n. The RS9110-based reference design is the world's first and only fully 802.11n Draft 2.0 Wi-Fi CERTIFIED(TM) SDIO card solution, and includes certifications for WMM-PS (providing power savings for time critical voice and video services) and WPS (Wi-Fi Protected Service(TM), easing set-up between client devices and access points). The RS9110 provides voice-over-Wi-Fi (VoWiFi) connectivity with a power profile of over 200 hours of talk time using a 800 mAH battery, and remains associated with a wireless network while consuming less than 1 mW of power -- giving an unsurpassed power advantage for mobile handsets over current solutions.

RS9110's performance and power advantages arise from six years of research and significant innovations in all the relevant areas of architecture, signal processing, algorithms and low-power implementation. It has been hand-crafted to deliver significantly superior wireless performance on a small silicon area. Wireless performance directly translates to power savings, and the RS9110 stands out in performance. For instance, it handles 54 Mbps streams in a ETSI-C multipath environment at an industry-leading signal-to-noise ratio of 27 dB.

The 802.11n standard has inherent advantages of data transfer efficiency compared to 802.11abg even when used in single antenna configuration. Single stream 802.11n outperforms 802.11abg in wireless performance, data throughput and power dissipation. "We had a challenge of reducing the die size of such a solution so that it is similar or smaller versus competitive 802.11abg solutions. Lite-Fi(TM) is architected at a very fundamental level by utilizing raw hardware, hand-crafted single- and multi-threaded processors at the right abstraction level to achieve very small die size," said Venkat Mattela, Chief Executive Officer. "We strongly believe that single stream 11abgn will replace any new 802.11abg installations as 802.11n comes at the same cost with significant other benefits," he added.

Power Reduction Wireless LAN usage commonly involves long periods of inactivity while remaining connected to a wireless network. The RS9110 solution integrated into a mobile device would remain connected consuming less than 1mW of power, and near zero when not connected, offering negligible drain on the battery. The RS9110's low power consumption capabilities enable over 200 hours of talk time on a standard 800 mAh battery at 3.7V.

The RS9110 Lite-Fi device incorporates advanced power management circuitry along with an integrated & fully calibrated 32 kHz oscillator. Competitive 802.11 WiFi chipset solutions typically use a low-frequency clock source to remain responsive to wake-up events. This provides size and cost advantages to Redpine's OEM/ODM partners.

Proprietary Processor and Layer-2 Offload The RS9110 Lite-Fi(TM) device incorporates a proprietary ultra low power multi-threaded layer-2 processor that not only provides a unique degree of protocol handling within the silicon but also provides a power-efficient offload of some critical layer-3 functionality. The RS9110's multi-threaded processor exploits the inherent characteristics of layer-2 MAC protocol characteristics to reduce power and code size. In addition, the Lite-Fi(TM) family of devices incorporates hardware assists for layer-3 tasks, such as TCP checksum and security processing, including AES, 3DES, SHA-1 and RNG. The results are further reductions in power dissipation and host processor overhead for fixed mobile convergence applications.

Wi-Fi CERTIFIED(TM) Redpine's RS9110-based SD card reference design is Wi-Fi CERTIFIED for 802.11n draft 2.0 by the Wi-Fi Alliance, and is the industry's first SDIO card to achieve this certification. In addition to enabling our customers' first-to-market advantage, Redpine's RS9110-based SD Card reference design enables 300% more data throughput over a SDIO interface versus competing solutions.

"802.11n draft 2.0 is an advanced standard for delivering increased throughput, improved range and Quality of Service (QoS) for enhanced multimedia capabilities. In achieving Wi-Fi CERTIFIED for 802.11n draft 2.0, Redpine Signals has demonstrated its commitment to ensuring industry interoperability and the best experience for Wi-Fi users," said Wi-Fi Alliance Senior Director, Karen Hanley.

A searchable Wi-Fi CERTIFIED products database is available at Visit Us at Mobile World Congress

Redpine will be hosting a booth at the annual Mobile World Congress show in Barcelona in February 2008 (Feb. 11 - 14). Visit us in Hall 2.1, Booth # 2.1D75.

About Redpine Signals, Inc. Founded in 2001, Redpine Signals is a fabless semiconductor company driving Wi-Fi® + WiMAX® convergence products for mobile, consumer and enterprise applications with sustainable differentiation in power and performance. Using its extensive patent portfolio in ultra low power OFDM and MIMO technologies, Redpine is making wireless convergence a reality.

Redpine is headquartered in San Jose, California with a development center in Hyderabad, India.

Contact Information Richard Murphy, Vice President, Marketing & Business Development Redpine Signals, Inc. Tel (408)748-3385, Ext 209 Email: Web:

Source: Redpine Signals, Inc.

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