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

Released on: September 19, 2008, 6:22 am

Press Release Author: competing802

Industry: Electronics

Press Release Summary: Redpines 802.11n solution achieves 300% higher data
throughput vs. competitive solutions; RS9110based reference design is industrys
first & only fully certified 802.11n SDIO card solution.

Press Release Body: Redpine Signals Lite-Fi ultra low power 802.11n Wi-Fi
solution achieves lower power than competing 802.11b/g solutions for mobile handsets

Redpines 802.11n solution achieves 300% higher data throughput vs. competitive
solutions; RS9110based reference design is industrys first & only fully certified
802.11n SDIO card solution

Barcelona, Spain GSMA Mobile World Congress February 12, 2008 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 RS9110 for 802.11n. The RS9110-based
reference design is the worlds first and only fully 802.11n Draft 2.0 Wi-Fi
CERTIFIED 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, 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.

RS9110s 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 handcrafted 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 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 RS9110s 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 Redpines OEM/ODM
partners.

Proprietary Processor and Layer-2 Offload
The RS9110 Lite-Fi 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 RS9110s multi-threaded processor exploits the inherent
characteristics of layer-2 MAC protocol characteristics to reduce power and code
size. In addition, the Lite-Fi 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
Redpines RS9110-based SD card reference design is Wi-Fi CERTIFIED for 802.11n draft
2.0 by the Wi-Fi Alliance, and is the industrys first SDIO card to achieve this
certification. In addition to enabling our customers first-to-market advantage,
Redpines 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 www.wi-fi.org.

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 Contact: richard.murphy@redpinesignals.com
WEB:www.redpinesignals.com

Web Site: http://www.redpinesignals.com/12feb08.html

Contact Details: Contact Information:
Richard Murphy, Vice President, Marketing & Business Development
Redpine Signals, Inc.
Tel (408)748-3385, Ext 209
Email Contact: richard.murphy@redpinesignals.com
WEB:www.redpinesignals.com

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