Wednesday, April 20, 2011

Chunghwa Tests 700 MHz and 2.6GHz LTE with Alcatel-Lucent

Chunghwa Telecom Laboratories and Alcatel-Lucent conducted indoor demonstrations of applications and services on a wide variety of 4G LTE devices from various Taiwanese terminal manufacturers and outdoor mobility tests on a high-speed train.

The demonstration builds on an intensive field trial in both 2.6GHz and 700MHz frequency bands that Chunghwa has been conducting over the past 6 months using an end-to-end LTE solution supplied by Alcatel-Lucent. The LTE trial focused on testing the radio frequency (RF) network performance in terms of coverage and penetration, especially high-speed IP-based data transmission using MIMO (Multiple Input Multiple Output) technology, mobility on hi-speed train and quality of service.

The tests performed on the high-speed train achieved record speeds in FTP data transmission of 90 Mbps in downlink and 34.2 Mbps in uplink while the train was running at 281 Km/h with smooth handovers between the base stations. In addition, the trial demonstrated low control plan latency with less than 115ms and superior FTP data transmission performance in fixed environment with maximum transmission capacity of 120 Mbps in downlink and 40 Mbps in uplink for each sector of LTE Remote Radio Head (RRH).

During the project period, Alcatel-Lucent conducted extensive interoperability testing with five local device manufacturers (HTC, Quanta, BandRich, Zyxel/MitraStar, WNC/Wistron) using ten different types of devices in various form factors; Smartphone, USB dongle, Indoor and Outdoor router and tablet PC with the aim to understand their readiness in LTE product development.