Spirent verifies LTE to CDMA handover to ensure seamless service experience on new generation of mobile networks
Date: Tue, 08/10/2010 - 17:31
Spirent Communications, a global leader in wireless networks, devices and services testing, announced testing capability that enables companies in the LTE ecosystem to verify LTE to CDMA handover of mobile device signals using lab-based test equipment. A live demonstration, using Spirent’s eAirAccess wireless network emulator, to an audience of network operator and device manufacturer representatives highlighted how Spirent ensures that subscribers experience seamless service even when transitioning across different types of wireless networks.
“Some early LTE network deployments will use multi-mode devices that support LTE, CDMA, and EV-DO,” said Will Stofega, program director, Mobile Device Technology and Trends, IDC. “Testing handover between two radio access technologies is critical to ensuring transitions between those technologies will occur without the subscriber experiencing any glitches.”
An LTE-to-CDMA handover, known as Inter-Radio Access Technology (I-RAT) handover, occurs when a mobile device equipped to use both technologies moves away from an LTE service area during a call or application session. Early LTE deployments will need to coexist with legacy networks such as CDMA/EV-DO or UMTS/HSPA for many years and users will expect seamless mobility across technologies and networks.
“LTE is not a natural evolution from CDMA/EV-DO,” said Hesham ElHamahmy, vice-president at Spirent’s wireless division. “It evolved from WCDMA and HSPA technology and deploying a CDMA/LTE network requires the use of evolved High Rate Packet Data, a ‘helper’ technology which acts as both a translator and ‘traffic cop’ between technologies. This technology evolution lends itself to a significant amount of complexity, something that Spirent is particularly well-positioned to address with our cutting-edge testing solution.”
This I-RAT handover testing functionality has been added to Spirent’s 8100 family of automated device testing solutions. The 8100’s eAirAccess network emulator features powerful enhanced packet core (EPC) emulation for simultaneous support of multi-technology (LTE, CDMA/EV-DO, UMTS), multi-cell networks. This enables the broadest possible test coverage of LTE multi-mode device performance, including RF/MIMO, location-based services, data throughput and more.