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handover posts

LG and Nortel complete first LTE-CDMA handoff, Verizon swoons

by Chris Ziegler posted Aug 25th 2009 @ 9:17PM

This'll probably end up being important for Bell and Telus up in Canada (even though they're taking an intermediate step from CDMA to HSPA), but Verizon must absolutely love the fact that the infrastructure guys have now figured out how to hand off data packets between CDMA and LTE networks in a standards-compliant way. LG and Nortel -- what's left of it, anyway -- have collaborated to complete the handoff in Nortel's Ottawa research labs on 700MHz spectrum between EV-DO and the Canadian firm's LTE hardware, using LG's so-called M13 prototype modem that roughly resembles consumer-grade equipment that LG wants to release next year. This is great news for customers who not only won't need to choose between a fast modem with crappy coverage and a slow modem with awesome coverage -- they'll be able to have both in a single device -- but they'll also be able to continue to torrent last night's True Blood as they move between technologies. Cheers to that.

Agito Networks looking to quickly handover cellular calls to VoIP

by Darren Murph posted Oct 15th 2007 @ 2:02PM

Handover technologies are nothing new, but Agito Networks is hoping to offer up scalable systems that can "hand voice calls over quickly and accurately between company WiFi and cellular networks." More specifically, the startup system utilizes RF to tell when an individual is approaching "predefined points at the limit of the company's WiFi coverage," after which a mobile-based client cooperates with a RoamAnywhere router (which integrates with the company's IP PBXs) in order to hand the call over. Reportedly, the actual transfer "takes less than one second," and administrators can even set up RoutePoints and instruct calls to be sent directly to voicemail when users are off duty. Granted, it seems Agito is aiming its products at medium-to-large businesses looking to save on cellphone bills, and if all goes well, models ranging from $9,995 to $24,995 should hit the US by the year's end.

T3G, NXP develop automatic handover between TD-SCDMA and GSM

by Darren Murph posted Jun 12th 2007 @ 3:32AM

It sounds like the days of dropped calls and endless frustration when leaving TD-SCDMA coverage and entering a GSM realm are nearing an end, as Beijing's T3G Technology and NXP Semiconductors have introduced the "world's first voice automatic handover of multi-mode TD-SCDMA and GSM/GPRS/EDGE in a handset." Just as it sounds, the technology will provide bi-directional on-the-fly, automatic handovers between TD-SCDMA and GSM networks, and any equipped mobile can "automatically scan for available networks" and switch over when necessary "without any adverse effects." Apparently, the two firms have already validated the claims on a number of Chinese network environments, but we've no idea how soon this peace making creation will get rolled out to the masses.