First Android Rugged Device in US market with Multimode Modem Support | Sasken Technologies Ltd (formerly Sasken Communication Technologies Ltd)

Scope

• Multi-mode supported Ruggedized device for enterprise market
• Enable Multi RAT (3GPP & 3GPP2) Modem & Telephony FW extensions for CDMA and GSM/UMTS on Android device

Solution

• SDR (Software Defined Radio) Support
• • Enable Multi Radio support for 3GPP (GSM/UMTS) & 3GPP2 (CDMA 1x/EVDO)
  • Modified Telephony layer and Android framework to introduce support for dynamically switching different technology (GSM/UMTS vs. CDMA)
  • Operator network switching via UI Application for seamless coverage
• Enabling Telephony & RIL features
• • Data Call and Multiple PDN support over PPP and support for Multiple Operators including World wide UMTS
  • Enable support for Voice, SMS and supplementary use cases
  • Phone App, Telephony FW and RIL extensions for Carrier Switching Applications
• Vendor (HW) RIL modifications suit the operator and customer requirements
• • Implemented In-Call Volume-modification through Vendor RIL interfaces
  • Provided Android RIL extension to provide bypass route to communicate with the Modem for Control, Data & Log path
  • Android Vendor RIL extensions to route GPS commands to Enable GPS functionality with Modem
• Validation
• • AT Commands validation
  • Supported PTCRB and Operator(AT&T, Verizon and Sprint) Certification

Impact

• Enabled customer to launch first Android ruggedized device in US Market with multi-mode modem support