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To: llwk7051@aol.com who wrote (515)	8/3/1999 11:03:00 PM
From: Caxton Rhodes	Read Replies (1) \| Respond to of 13582

Japan Delays Technical Standards for Next-Generation Cell Phone System August 3, 1999 (TOKYO) -- Japan's Ministry of Posts and Telecommunications postponed the submission of technical requirements for commercializing IMT-2000, a standard for next-generation cellular phone systems, until September. In response to the decision, NTT Mobile Communications Network Inc. (NTT DoCoMo) may have to review its commercial IMT-2000 service launch, now scheduled in March 2001. However, a company spokesperson said the firm will stick to its scheduled launch. To offer commercial IMT-2000 services in Japan, mobile phone service providers are required to make their services and systems comply with technical requirements drawn up by the Telecommunications Technology Council, an advisory group to MPT. MPT initially planned to submit a report on the IMT-2000 technical standard in April 1999. However, it decided to postpone the submission until July, considering progress of the IMT-2000 standard-setting process by the International Telecommunications Union. Expecting the submission of the report no later than July, NTT DoCoMo was prepared to start its service in March 2001. As reasons for the postponement, the Telecommunications Technology Council cited the following two reasons: (1) There are several methods to realize IMT-2000. Standardization of one of them, which was planned to be adopted in Japan, has been delayed, so that part of technical requirements for the method cannot be provided. (2) The radio frequency band to be used for IMT-2000 may conflict with that used for personal handyphone systems (PHS). Therefore, restrictions on output of the IMT-2000 terminal and the radio frequency band will need to be re-examined. All IMT-2000 standards to be adopted in Japan will employ a technology called CDMA. These standards will be roughly classified into two groups. direct spread (DS) and multi career (MC). The IMT-2000 standards which use DC-CDMA technology are wideband code division multiple access (W-CDMA) method and wideband cdmaOne (cdma2000) method, and the standard which uses MC-CDMA technology includes the cdma2000 method. The standardization of the cdma2000 method which uses MC-CDMA technology has been delayed. Detailed specifications of this method are currently being prepared by 3GPP2, an international organization for which the U.S. Telecommunications Industry Association (TIA) serves as secretariat. Currently, NTT DoCoMo claims it will adopt the W-CDMA method, not the cdma2000 method using MC-CDMA technology, so that the company is still entitled to start its service in March 2001, as initially planned, despite the postponement of the submission of the report, according to an NTT DoCoMo spokesperson. Japan's largest mobile telecom carrier intends to launch the service as originally scheduled unless future standardization of the cdma2000 method will require W-CDMA method specifications to change drastically. (Nikkei Communications)