Here is one of those reports from this morning:
Japanese cellular service providers to work w/motorola cig
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Mar 26, 1997 8:47 AM [Futures World News]
Arlington Heights, Ill.-March 26-FWN--TWO OF JAPAN'S leading cellular service providers, DDI and IDO, announced today they have selected Motorola's Cellular Infrastructure Group (CIG) to deploy new digital CDMA (Code Division Multiple Access) networks. The new CDMA networks will combine to provide nationwide CDMA coverage.
DDI initially will deploy its new CDMA network in the Kansai area which includes the cities of Osaka, Kobe and Kyoto. The IDO network will be deployed in the Kanto and Tokai areas which include Tokyo, Nagoya and Nagano. Trial systems for DDI and IDO are scheduled to begin during the second half of 1997. Commercial launches for the new networks are planned for the second quarter of 1998. Roaming capabilities will be available immediately between Tokyo, Nagoya and Osaka. The combined nationwide CDMA coverage with more than 1,500 cell sites is planned for 1999.
The Japanese government's decision to support cellular service providers' selection of CDMA was based on the nation's requirement for a more spectrally efficient RF technology that provides high voice quality and the maximum capacity for future growth.
As a mobile system, Motorola's CDMA technology offers operators an immediate potential capacity gain of eight to 10 times that of analog, and provides superior voice quality and maximum capacity for future growth.
"The introduction of CDMA into Japan, the second largest cellular market in the world, guarantees that this new digital service will become one of the world's foremost wireless technologies and confirms Motorola CIG's position as the leading provider of CDMA infrastructure equipment," said Gene Delaney, vice president and general manager of Motorola's Japan Cellular Infrastructure Division.
Both networks will use Motorola's SC(TM) family of base stations and EMX(R) 2500 mobile switches. The EMX 2500 was developed jointly by Motorola CIG and DSC Communications Corporation. DSC manufactures the switch and provides core platform software while Motorola develops the mobility applications software.
Additionally, the operators will use new, state-of-the- art 8 Kbps Enhanced Variable Rate Vocoders (EVRC), digital voice encoders that provide landline quality voice transmission and significant capacity gains compared with the 8 Kbps and 13 Kbps vocoders currently in use by other cellular and Personal Communication Systems (PCS) operators. The new 8 Kbps EVRC also is exceptional in eliminating from phone conversations the background noise that is typically heard in dense urban areas, for example.
Motorola CIG's infrastructure equipment is currently deployed by both DDI and IDO as part of a nationwide analog cellular (Total Access Communications System or TACS) network in Japan. Motorola CIG's digital Personal Digital Communications (PDC) equipment also provides nationwide coverage. |
