Qualcomm and Teleepoch
Enter Into a 3G CDMA Subscriber Unit License Agreement, October
6, 2007
MTN chooses Cambridge Broadband
Networks for multi-service wireless network in Rwanda, October 6,
2007
Brazilian government to
publish 3G bidding rules soon, October 6, 2007
KTF 3G service suffers
from technical problems, October 6, 2007
Argentina’s Personal
lunches 3G service in Rosario, October 6, 2007
Russia has it's first 3G
network, October 6, 2007
AT&T could drop Alcatel-Lucent
as 3G mobile network supplier, October 6, 2007
Enea Extends License Agreement
with ZTE for 3G Handsets, October 2, 2007
LG to unveil premium handsets
in Brazil, October 2, 2007
KTF 3G subscribers doubled
in less than 3 months, October 2, 2007
3G policy in India will
be non-uniform, October 2, 2007
- previous news
|
|
Nokia wideband speech coding proposal selected as CDMA2000 standard
April 26, 2003
Nokia announced its latest contribution to CDMA technology as its proposal
for standardizing a CDMA2000 wideband speech codec was selected by the
3GPP2 from a field of five competing proposals. The new Variable-Rate
Multi-Mode Wideband speech codec (VMR-WB) offers superior wideband speech
quality at data rates comparable to current narrowband speech codecs,
resulting in highly intelligible and natural speech that represents a
quantum leap over the quality of both today's wireless and wireline networks.
The VMR-WB standard is not only fully compliant with the CDMA2000 rate-set
II but is also interoperable with the AMR-WB standard selected by the
3GPP for use in GSM/WCDMA networks. The interoperability between CDMA2000
and WCDMA networks that is enabled by the VMR-WB technology allows high-value
voice services to be used between mobile customers across the globe, regardless
of the network standard that each customer is using.
"The selection of the VMR-WB technology by the 3GPP2 is a reflection
of both Nokia's continued leadership in third-generation standards forums
and the long-term commitment of Nokia to invest in CDMA research and development,"
said Adam Gould, vice president of technology management and strategy,
CDMA for Nokia Mobile Phones. "This new technology will deliver new levels
of service for end-users and a point of differentiation for operators
in the area of voice quality, which continues to be an important service
issue. Additionally, this combination will allow wireless operators to
more aggressively compete in the wireline replacement market."
The VMR-WB codec is engineered to guarantee a high level of performance
under severe channel error and background noise conditions to allow the
delivery of a variety of applications under a wide range of conditions.
Some of the applications made substantially more compelling by VMR-WB
include mobile-to-mobile wideband voice calls, voice over IP (VoIP), mobile
or fixed network audio conferencing, point-to-point and multi-point business
applications, multimedia streaming and videoconferencing.
|
3G Motorola A920
