Huawei Technologies today announced achieving success in DSL retransmission interoperability (IOP) tests in partnership with major DSL chipset suppliers, including Broadcom Corporation, Lantiq and Ikanos.

The IOP tests were ITU-T G.998.4 compliant.

According to Huawei, the success underlined that chipsets from different suppliers passed the IOP test, even in high impulse noise environments. According to Huawei, in the ADSL2+ IOP test between Broadcom and Lantiq, the payload throughputs showed little difference between retransmission features enabled with impulse noise, and retransmission features without impulse noise. The maximum packet delay caused by retransmission is approximately 6 milliseconds, and the anti-impulse-noise capability of the retransmission technology is more than 10 times that of traditional INP technologies, explained Huawei.

“Broadcom is pleased to have reached interoperability of retransmission and to have contributed essential elements to ITU standardization of this technology. We have demonstrated the outstanding performance advantages of this technique for several years, and now, by working with our partners, we believe re-transmission will become an essential part of IPTV deployments worldwide,” said Greg Fischer, vice president and general manager of carrier access for Broadcom Corporation.

“As a leading DSL chipset supplier, Lantiq believes interoperability is the key to broad market adoption. With Lantiq’s contribution to the ITU-T standard, we enable system suppliers and carriers using standard-compliant equipment to introduce re-transmission functionality with multi-service capabilities quickly to the market. This successful interop event is another validation of the benefits of re-transmission, and Lantiq’s excellent performance during this event sets the stage for advanced service deployment,” said Hubert Christl, senior vice president and general manager of the Access Networks Business Unit for Lantiq.

Deng Xiaohe, Chief Officer of Access Network Product Line, Huawei, said, “DSL retransmission technology will help carriers worldwide to construct best-in-class ultra-broadband, ultra-stable DSL networks. We believe that through our joint efforts with industry-leading chipset suppliers, this technology will enable carriers to roll out new services that meet the needs of today’s consumers who seek, not only higher bandwidth and richer services, but better broadband service stability.”