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
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WiseBand Communications Announces Wise-DPD
April 30, 2003
WiseBand Communications, a provider in the field of RF power amplifier
linearization technology, announced the introduction of Wise-DPD, a linearization
technology for multi-carrier power amplifiers (MCPA) for UMTS/CDMA2000
base-stations.
The efficiency and cost of base-station power amplifiers are major areas
of concern for both base-station manufacturers and power amplifier vendors.
This is because the cost, size, heat dissipation and power consumption
of the entire base-station are totally dominated by the power amplifiers.
Wise-DPD provides a significant step forward for base-station cost, efficiency
and size. Wise-DPD is a full system solution, based on a novel Digital
Predistortion (DPD) technology, combined with unique system architecture.
It delivers exceptionally high efficiency and linearity performance under
demanding, multi-carrier scenarios. WiseBand's proprietary algorithms
provide comprehensive treatment of PA memory effects, fast adaptation
under varying operating conditions, and a high degree of tolerance to
RF hardware characteristics.
Being a flexible baseband solution, Wise-DPD can be integrated into a
power amplifier or as part of the base-station transmit chain. Interfacing
can be done at RF, IF or baseband.
The first Wise-DPD demonstration platform is a UMTS (WCDMA) application.
Operating in the 2110-2170 MHz band, the demo MCPA achieves efficiency
levels exceeding 18 percent, with linearity exceeding 3GPP compliance,
with 4 WCDMA carriers (over 20 MHz instantaneous bandwidth).
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3G Motorola A920
