To: Ruffian who wrote (31901 ) 6/7/1999 6:34:00 PM From: quidditch Read Replies (2) | Respond to of 152472
Operators Proposal on 3G Harmonization: (aka, meet the new Madame Defarge, Madame Li Mofang)Operators Propose 3G Compromise By Vanessa Clark 07 June 1999 An ad hoc group of cellular operators and manufacturers today submitted a proposal designed to unify wideband CDMA and cdma2000 proposals for a third generation cellular standard to the International Telecommunications Union. The Operators Harmonization Group (OHG) hopes the submission will pave the way to the formal adoption of IMT-2000, or a Global Third Generation (G3G) standard by the end of the year. The OHG proposed a harmonized CDMA family of standards that allow for the migration from both existing GSM and CDMA networks. It bridges the gap between the Third Generation Partnership Project - a group formed by GSM supporting standards bodies - and the Third Generation Partnership Project 2 - a CDMA-supporting group comprising ANSI/TIA/EIA-41."The agreement means there are no losers," said Vino Vinodrai, director of independent relations and resources at Bell Mobility and OHG spokesman. The 3GPP said it is too soon to comment on the OHG's proposal as it has yet to go through a consultation process. The 3GPP2 were unavailable for comment at the time of publishing. The harmonization group proposes a single umbrella standard, with three modes enabling the migration from different existing networks: a direct sequence (DS) mode for WCDMA, a multi-carrier (MC) mode for cdma2000 and a time division duplex (TDD) CDMA mode. All three will be handled by a single chip with a dual chip rate of 3.6864mcps and 3.84mcps. "The manufacturers agree it can be done and won't add to the cost," said Vinodrai. He said the proposal was supported by the thirty operators and 12 manufacturers which attended the OHG meeting in Toronto in April where it was formulated. The group's work was presented to the ITU Task Group 81, which is meeting in Beijing this month, by Madame Li Mofang of China Telecom, who chairs the OHG. Assuming the ITU adopts the proposal it will be passed on to working group level and the standard bodies who will need to change their proposed specifications. The OHG is confident the proposal will not face any hurdles. Meanwhile the manufacturers will begin work on incorporating the revisions in their development work said Vinodrai. In March, the ITU gave up its fight for a single IMT-2000 standard and settled for a compromise of three next generation air interfaces: cdma2000, WCDMA, and TDMA. It then placed the responsibility for making this family of standards work back in the hands of the manufacturers. The OHG claim to have combined the first two modes in this proposal and acknowledge the TDMA proposal will be part of IMT-2000. Vinodrai envisages pockets of TDMA onto which callers can roam using dual-band handsets. He imagines this will depend on market demand and that market forces will dictate the evolution of the standard. Copyright EMAP Media 1999 Regards. Liacos samui