A journal for networking and telecoms
AT4 wireless announced new testing services covering Release 8 (LTE) and Release 7 (HSPA+). The facility started operations in Taiwan last October 2009, and during 2010 obtained ISO 17025 accreditation and became GCF and PTCRB accredited laboratory for GSM, GPRS, EDGE, WCDMA and HSPA conformance testing, including Protocol and RF.
AT4 is based in Malaga, Spain and also has a lab in Herndon, Virginia.
http://www.at4wireless.com
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From the Technology Graveyard
You just read about LTE. Here is what it replaced:
iDEN served 1994–2013. What ultimately replaced it?
iDEN motorola's TDMA system that layered digital cellular voice, data, and near-instant push-to-talk (Direct Connect) onto fragmented SMR radio channels. Its job passed to LTE — but the problem it solved, and the ideas it proved, live on in what replaced it. The standard rests here in the archive. One of 198 technologies here that opened a door and then held it for the next.
From 25 years of the Converge Digest archive.
