Wifi Revolution

Redpine Signals has released a set of three WiFi (News - Alert) modules based on its ultra low power Lite-Fi 802.11n technology.

 

The modules offer a set of small form-factor solutions for current and next-generation battery constrained mobile handsets, digital still cameras, consumer electronics devices and industrial data communications.

 

The modules offer a complete 802.11n sub-system. In addition, modules integrate Redpine's Lite-Fi RS9110 802.11n SoC, a RF transceiver, power amplifier, EEPROM and external front-end components.

 

Along with connecting directly to an antenna on the line side, these modules also connect to a host processor through a choice of SDIO, SPI and EBI interfaces. Moreover, the modules work off a single 3.3V power supply and a “flexible” reference frequency.

 

The modules are accompanied by device drivers for Windows CE, XP and Linux operating systems. And, the Windows CE drivers comply with Microsoft (News - Alert) Windows CE 5.0/6.0 Test Kit (CETK).

 

The modules feature host interfaces, including a SDIO interface that permits data throughputs of more than 30Mbps. The internal processor handles not only the WLAN protocol functions but also offloads cycle intensive layer-3 functions from the host.

 

The host includes TCP checksum and layer-3 security functions, such as 3DES, AES, RNG and SHA-1. The modules enable the provision of WLAN functionality with very little extra load on the host processor.

 

The modules also provide mechanisms that carry out fast roaming from one AP to another. Officials said that this allows the seamless handover of voice calls throughout a large office.

 

Redpine Signals is a fabless semiconductor company driving WiFi and WiMAX (News - Alert) convergence products for mobile, consumer and enterprise applications. The company offers extensive patent portfolio in ultra low power OFDM, MIMO and multi-threaded processing architectures.

 

Earlier this year, Redpine and SiTel Semiconductor, a supplier of semiconductor products for digital cordless telephony, announced integration of Redpine’s Lite-Fi 802.11n SoC and SiTel’s baseband IC SC14450 into a complete VoWiFi phone reference design.

 

 

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